Crushology 101

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Drama: Crushology 101 (English title) / Bunny and Her Brothers (literal title)
Revised romanization: Bunnywa Obbadeul
Hangul: 바니와 오빠들
Director: Kim Ji-Hoon
Writer: Ni Eun (webcomic), Seong So-Eun, Lee Seul
Network: MBC
Episodes: 12
Release Date: April 11 - May 17, 2025
Runtime: Friday & Saturday 21:50
Language: Korean
Country: South Korea

Plot Synopsis by AsianWiki Staff ©

Ban Hee-Jin (Roh Jeong-Eui) is better known as Bunny. She is a top student in the sculpture department at Yein University and she has a good personality. When she was a freshman, she stated that she doesn't notice a guy’s appearance, but only their personality. She dated a man who was not so good-looking, but good-natured. Their relationship didn't go well, as it turned out his personality was ugly. Bunny was embarrassed by their relationship and she was branded a fool for love. She now admits she likes a good looking man, but she carries low self-esteem due to her first experience with love. Her troubles really begin as men with various charms appear in front of her, including Hwang Jae-Yeol (Lee Chae-Min) and Cha Ji-Won (Jo Joon-Young). Hwang Jae-Yeol is a representative of the visual design department and he is respected and loved by his peers. He has a strong and warm personality. He wants to become an art director. Cha Ji-Won seems like a perfect guy. He is the grandson of a chaebol family, handsome, smart, and has a good personality. He is the type of boyfriend of every female student dreams of.

Notes

"Crushology 101" takes over MBC's Fri & Sat 21:50 time slot previously occupied by "Undercover High School" and followed by "A Head Coach's Turnover" on May 23, 2025.
Based on webcomic "Bunnywa Obbadeul” by Ni Eun (published September 22, 2019 - October 16, 2023 via Kakao).

Cast



Roh Jeong-Eui	Lee Chae-Min	Jo Joon-Young	Kim Hyun-Jin	Hong Min-Gi
Ban Hee-Jin	Hwang Jae-Yeol	Cha Ji-Won	Jo A-Rang	Jin Hyun-O

Ban Hee-Jin's Group



Nam Kyu-Hee	Choi Ji-Su	Lee Ji-Hoon	Kim Jae-Hwa	Kim Si-On
Kwon Bo-Bae	Nam Kot-Nim	Ban Young-Min	Kim Hyun-Kyung	Ban Hee-Jin (child) (ep.1)

Hwang Jae-Yeol's Group



Kim Min-Chul	Wang Bit-Na	Jeon So-Young
Lee Dong-Ha	Lim Kyung-Hwa	Han Yeo-Reum

Cha Ji-Won's Group

Chae Je-Ni

Cha Hye-Won

Yein University



Jeon Jun-Ho	Lee Tae-Hee	Kim Hyun-Mok	Jo Hyun-Ah	Jung Ye-Nok
Chun Choon-Sik	Bang Ho-Dong	Ko Bong-Soo	Park Hye-Young	Jung Min-Joo



Kim Ju-Mi	Jin Se-Lim	Hwang Hye-Jin	Jung Ji-Woo	Choi Bo-Min
Oh Yoo-Ri	Min Ji-Young	sculpture student	staff	student (ep.1)



Kim Hwi-Gyu	Park Jung-Eon	Yun Tae-Yi	Shin Young-Kyu	Seo Ye-Bin
library student (ep.5)	professor (ep.6)	staff (ep.8)	Ko Bong-Soo's friend (ep.9)	library staff (ep.11-12)

Others



Lee Jin-Woo	Jo Young-Mi	Hong Seok-Cheon	Jang Eui-Su	Yeom Ji-Hye
high school art teacher (ep.1)	landlady (ep.2)	camera shop customer (ep.3)	Lim Kyung-Hwa's boyfriend (ep.3)	anchorwoman (ep.4)



Lee Seung-Hyeong	Jeong Tae-Su	Yoo In	Lee Ga-Kyung	Kim Keum-Soon
director (ep.6)	filming staff (ep.6)	Choi Seon-A (ep.6,12)	angry wife (ep.7)	Han Yeo-Reum's mom (ep.8)



Cho Jae-Kyeong	Moon Ki-Young	Ha-Min	Moon Hyeong-Cheol	Kim Do-A
movie club staff (ep.10)	doctor (ep.10)	Arte Foundation staff (ep.10)	Yu Cheol-Ung (ep.11-12)	Kim Hui-Jeong (ep.11-12)



Min Woo-Ki	Ok Joo-Ri
taxi employee (ep.12)	store owner (ep.12)

Additional Cast Members:

Kim Yu-Bin - sculpture student
Koo Do-Kyun - printer (ep.4)
Ko Do-Eun - waitress (ep.8)
Lee Se-In - female police officer (ep.9)

Trailers

Episode Ratings

Date	Episode	AGB
Date	Episode	Nationwide	Seoul
2025-04-11	1	1.3%	-
2025-04-12	2	0.9%	-
2025-04-18	3	1.5%	-
2025-04-19	4	1.1%	-
2025-04-25	5	1.1%	-
2025-04-26	6	0.9%	-
2025-05-02	7	0.8%	-
2025-05-03	8	0.7%	-
2025-05-09	9	1.2%	-
2025-05-10	10	0.8%	-
2025-05-16	11	0.9%	-
2025-05-17	12	0.8%	-

Source: AGB Nielson

Awards

2025 MBC Drama Awards - December 30, 2025
- Best New Actor (Lee Chae-Min)

Comments

irish Nov 22 2025 5:03 pm Everyone’s saying this drama is bad and couldn’t finish it but i loved it. It’s a teen romance so it’s totally understandable if it’s not everyone’s cup of tea. Reading the comments, i guess i’m the only who doesn’t like jiwon hehe. I love yeol but he pisses me off that he was insecure with jiwon and wanted bani to give up on her dream just because jiwon is also coming to the US. How can he not contact bani for a whole year? They didn’t even had a proper break up. But at least they made up and still ended up together. I love Yeol’s relationship with Bani’s parents tho <33

fox_red Sep 03 2025 6:20 pm I started to watch this series just because of Lee Chae Min in 'Bon Appetit, Your Majesty'. Due to the fact that it is currently airing in KR, I have to wait on weekends just to watch him. So I decided to look for his another project.

But the problem is, the female lead of this 'Crushology' is so awful and boring. She's so awkward in throwing lines, that makes me gag and not even want to continue watching.

Sorry, King Yi Heon, I tried—but your partner is soooo cringey.

Stella Jun 29 2025 4:03 am I really love this drama especially the hierarchy stars I'm rating this 10/10 it's a go for me ?

KDrama_Addict Jun 03 2025 11:52 am The main leads made me watch this series, but I ended up wanting Bunny to choose JiWon instead T_T

Disclaimer: I will be talking about the Characters, not the actors themselves. Okay?

Didn’t know Yeol could be so toxic and full of ?. At first, I was rooting for him, but when that ex came, my “gigil” went to its peak. I just couldn’t stop cussing the entire episodes with him and his ex. And I could feel @Olya_1004’s annoyance when he and Bunny made it official. That couldn’t happen irl. Like, fr? Telling your gf’s guy friend to f*off because you’re the bf? C’mon. They could be friends instead. He’s creating all the drama. No, actually, he is the drama there.

Ji Won must’ve been the best fit for Bunny. The green flag in this story. Every scene of his is like watching a healing show. How could someone not like that kind of guy? I also like the fact that he never once told Bunny he likes her, but Bunny knows it. Yeah, it sounds weird but that happens today. Indirect confessions thru actions. Anyway, please give this guy his endgame. Hoping to see him get his main lead role with his happy ending.

Bunny is sooooooo Relatable. I’m sure, most of the girls would agree that Bunny’s character is so true to life. Like, who would not get attracted to handsome faces? I also like the fact that even though she knows JiWon likes her, she never waver nor got confused/shaken. She probably never had feelings for him. That’s when I accepted that they would not end up with each other. I’m sure we could all agree that what she shows to the oppas is completely understandable. She couldn’t just abandon her friendship with Won just because he’s a guy and she now has a boyfriend. I wouldn’t do that also. I could also understand when she decided to distance herself from Won. (It’s bcause of you, Yeol!) but that really shows she loves Yeol. Anyway again, I just love her. Her character and her as an actor. No scene of hers that I never praised her for her acting and her beauty. Such a pretty face.

Anyhow, I’m not quite disappointed with how it ends since I initially want Yeol and Bunny together. And yeah, I don’t dislike any Korean Drama I have watched. In fact, I like every single one of them. ??

Olya_1004 May 20 2025 7:43 pm Still haven't finished it but I am at the last few episodes now. I really really wanted to like this. I love college dramas and all the guys in the poster are actors I wanted to see more,except Ji Won as I didn't know the actor before this show,FL actress was the thing I was concerned about as she has a very blank stare acting that I hate.

I wanted to love the ML but this was one ML I had a hard time liking,the actor is great and he has potential but his role was full of red flags.

Spoiler - After they finally got together,I was getting so annoyed by his behaviour towards Ji Won,he was being so possessive and acting like he has low self esteem. Even though I understand it might be hard to know that a guy who is in love with your girlfriend is also her friend,he has no right telling him to stay away from her. You feeling insecure? tell your girlfriend! let her make the decision. Ji Won was nothing but sweet and caring all show,everytime he almost did something nice for her,Yeol comes out of nowhere and takes his chance to care for Bani. He never hit on her or made a move after she got a bf but he acts all possessive and it's gross.

lolo May 20 2025 10:20 am stupid drama and very boring, just dragging events with no plot. the leads are so not talented and they should have not ended together. i like her first love, the second lead and dongha way better than the leads

Silvermoon May 18 2025 7:07 pm Contains spoilers!

Frustrating to say the least. It's one of those k-dramas where you can already tell who she's going to end up with from the start and the plot is just dragged out with unnecessary storylines, most of the other characters are just there to make the love story between the main leads progress (especially to wake up Yeol who is just an idiot, of course no hate to the actor, he was actually good). Literally every guy except the obvious red flag from the first episodes was better than the male lead, her first love didn't even have enough screen-time but imo he was actually the most interesting out of everyone. I really hoped for a plot twist in the last episodes but no, I feared it would end up being cliché and it did end up being just that. What I hated the most was Yeol's jealousy towards Ji Won and how he didn't want her to go to the US, girl should have broken up for good after hearing him say those things to her.

Tiara May 18 2025 10:37 am Crushology 101 is a surprisingly addictive K-drama that absolutely deserves more love. From the very first episode, it pulls you in with its charming characters, witty dialogue, and just the right amount of romantic tension. The storyline might seem familiar — a campus romance with a love triangle twist — but it’s executed in such a fun and fresh way that it never feels cliché. What makes this show really stand out is how emotionally engaging it is. You’ll find yourself getting frustrated, excited, and completely invested in what happens next. Every scene has something that keeps you on your toes, and even the side characters are memorable and well-developed. Whether you’re a longtime K-drama fan or someone looking for something new to watch, Crushology 101 is a feel-good series that’s easy to binge and hard to forget. Highly recommended if you’re into romantic comedies with just the right touch of drama.

strugglingviewer May 18 2025 4:38 am my two cents; when the camera captured the face of the actors for some seconds, and no dialogue just the face, in that seconds, viewers supposed to read the face, what the face implied, does it mean the actor is contemplating to harm that dude or is the person suppressing the urge to smack that face of the other actor. There are meanings in that several seconds passing by. But here, at least, I, couldn't read the room, what is going on in his/her head. Maybe i lost it or maybe there really is nothing meaningful in that camera rolling for several seconds. So put several of those shots in one episode, then there are lots of seconds gone for no meaning. Just pure waste. It didn't raise my curiousness about what is going on, didn't knock my head telling me to read the non-verbal presenting on the screen, because there is none. Some said the Koreans set the bar higher, due to the characteristics of the population, or whatever, you can talk hours about it, but yes you guys set the standard higher, your tvdramas make viewers think more. But here, we barely see the trace of those qualities, if there is any. So lots of empty shots, ottoke?

Nimi May 17 2025 8:32 am Hiss hiss hiss hiss

Cutie May 16 2025 11:03 am I really love this drama. Every scene has a heart-fluttering feeling of excitement and joy. It’s light and not a stressful drama. I recommend this drama.

youngwoo May 14 2025 2:27 pm Love this kdrama. It’s airy, breezy and suitable for me after a long tired day of working. I love Ji Won’s characters. He is charming, polite, caring and thoughtful. I am 40yrs old ahjumma, will fall in love with Yeol at my 20’s but I’ll tell my younger self to choose Ji Won lol!

Jillibean May 14 2025 12:40 pm I'd give this a B or B+. There's really nothing original in it. As others have mentioned it's more a drama to fall asleep on at night in lieu of taking melatonin. Lol

HYJ May 13 2025 12:31 pm I'm sorry... but 2nd male lead syndrome is too big with this one... There is way more connection and tension from Cha Ji Won than ML... Also, FL acting is getting a bit bland and repetitive but honestly, Cha Ji Won is keeping me watching even though there will be no chance... The writing is definitely not the best compared to amazing ones like Lovely Runner, but if you want a light watch with nothing too heavy, I guess this is fine~

Nimi May 12 2025 7:42 am Why would anyone leave ji won to date yeol? I need to stop watching this Mtchewww

Olya_1004 May 09 2025 6:30 am Left a comment when the drama started that I mainly wanted to watch it for the male leads because the FL acting is so wooden and I hoped it would be better. I would say that at the start she was more "awake" so to speak but these last few episodes,she is back to blank stare,dead eyes.

I don't like the ML either even though I love the actor. It's getting too predictable now with episode 8 which I guess is fine cause it is a Rom com and nothing crazy will happen but FL is acting so selfishly.

Episode 8 has been annoying me and it was hard to watch. Spoiler ahead: I love Jiwon way more than Yeol,so far he has been watching from the side and once he realized he liked Bani he decided to try his best. The part that pissed me off the most is how he literally just confessed to her and she is still running to Yeol,not even caring if she hurts her friend. I am not saying she has to like him back if she doesn't,she doesn't have to give him a confession back but at least don't rub it in his face. I feel like he has been a very kind and good friend for her so far and that's how she acts. I was kind of hoping the writers will turn it around and get Yeol back with his ex and Bani would realize how amazing Jiwon is but nope.

Lily May 07 2025 3:23 pm I think it’s really cute and it kinda gives lovely runner vibes,I personally got it know it from tik tok and after I started to watch I understood the plot that is for sure interesting but it sometimes seems like a slow burn so that makes hard to watch but it is pretty much a really cute and great Kdrama

yeol May 07 2025 1:55 am the story is pissing me off as it progress, im originally team yeol but he starts to piss me off with his storyline, and i dont like jiwon so i am not fallling for his agenda. so yeah burn this boring ass kdrama

x May 05 2025 9:42 pm waste of time every character is red flag. turn of events is unrealistic. very hard to watch.

Buggie May 05 2025 11:21 am It's kind of annoying how different from the manhwa it is, I understand the manhwa is not even close to finished, but they only really used the plot of the first few chapters and then made their own story. Where Is My Himbo Basketball Player???

D May 05 2025 2:37 am Something just bothered Yeol, so he had a hard time deciding and he needed some time to think properly and we'll see that he really loves Bani. Because no matter where or who he is with, bani is still on his mind even though he has many problems, bani is still in his mind and heart. And in the recent ep.8 we saw what yeol did. It's just thrilling to see yeol and bani, ep.8 is my favorite right now.

Ac May 04 2025 12:30 pm Jae Yeol is a red flag for me. He's not being strict with his ex yet still keep on bothering Bani. I hope Bani will end up with Ji Won.

Sempol May 04 2025 2:26 am After watching the 8th episode I know why the rating is not good, because the storyline is boring and cliche, easy to predict. Everyone experiences cheesy teenage romance. The audience doesn't care whether Bani ends up with Jiwon or Yeol, because the audience is already bored with the situation of misunderstanding puppy love. Please producer, try to make a series with a good and impressive storyline

Amorking May 02 2025 5:09 pm This drama gives off 'Nevertheless' vibes...even the effects look same

Jerim May 02 2025 2:11 am i hope bani with cha ji won because he is very care, so loving, handsome, always comforts and doesn't upset her, accepts bunny for who she is, and bunny is also liked by his little sister. I don't like bani with yeol, because yeol looks quite rude.

Jillibean Apr 29 2025 10:01 pm I'd really like to know who the real sculpturer is, the sculptures shown are very impressive.

poop Apr 28 2025 9:13 am Bani needs to end up with cha jiwon,he is so caring and a really good guy,,, i don’t like Hwang Jae-Yeol he pisses me off

Bunny Apr 27 2025 10:35 pm I started to piss off about Yeol characters, he kinda red flag to me. But obviously he will end up with bunny.

Kdramawatcher Apr 27 2025 9:35 am I stopped at eps 2. Really not for everyone. Super bored

Good time Apr 26 2025 3:19 am I'm enjoying this drama, it's light and easy, perfect to watch after a long day.

Patt0 Apr 25 2025 2:01 pm Roh Jeongeui is so lovely in the role of Bunny. She can play both dark and bright characters.

Jillibean Apr 24 2025 3:55 pm I'm 67 years old but I feel like I am back in my teen years watching this. It's very sweet, light and airy, but as Errica Lim says, below, that could be just what we need when we are going through difficult times in our lives. I will watch until the end.

Errica Lim Apr 24 2025 12:03 am This drama exhudes youthful and refreshing vibes. The FL gives me a Kim You-Jung aura and Song Kang-like for the ML. K dramas like this are a breathe of fresh air for viewers like me who are stress-filled from everyday difficulties. Just light and easy, soft and breezy. On my 4th episode and as light as the story goes, the cast are like cotton candies which are pretty to look at, sweet and charming on the outside as well as cottony light on the inside.

Piyoe_chan Apr 21 2025 6:43 pm I want to see bomin again

Lie Apr 21 2025 6:55 am This drama is so good, changmin so handsome!!! the chemistry is good with roh jeong eui <3

lely Apr 16 2025 10:17 am i really like the color grading and the cinematography it’s giving light spring vibe, so many flower, eye catching drama set, and really refreshing to watch I can’t talk much about the plot since it’s still 2 eps ongoing but so far so good, I enjoyed it @

(˶˃ ᵕ ˂˶) .ᐟ.ᐟ Apr 15 2025 12:20 pm Only two episodes, and I already love this drama! Many people in the comments don't like it because of its "cringe" plot, but I find it really refreshing and easy to watch. And there's no embarrassing moments so far. Also, all the characters are attractive haha. It's a light, yet interesting drama. I love the romance and the vibes of it. Overall, it's really satisfying to watch. I don't mind if there's "cliché" plots.

Patrick Apr 13 2025 9:08 am The FL look like Bona

watcher Apr 13 2025 6:34 am this drama definitely for ladies

Jessy Apr 13 2025 3:29 am It is crazy to think that MBC is putting these cringe dramas into their weekend slot.

iwanx Apr 13 2025 2:25 am it has been a long time since MBC have produced young romance kdrama like this. seems the dont have enough resources. last drama with many young actor/actress with romance theme like this is extraordinary you

Nabi_ Apr 12 2025 6:03 am This drama is very nice!especially the actors and actresses acting! ill never get tired of watching and rewatching! haha:)

Precious Apr 11 2025 2:01 pm It's giving "Nevertheless" vibes with two male leads

Olya_1004 Apr 04 2025 9:14 am I really want to watch this for the main guys and I hope it goes well because I haven't liked any drama that I've see with this actress and couldn't finish any of them. She is gorgeous but her acting is a bit stiff,fingers crossed for better acting here.

Yaheeee Mar 25 2025 5:00 pm Jeong Eui look so refreshing and bright in this drama!

Amalia Mar 23 2025 5:41 am So this drama similar to was it love but teen version??

PANDORA Mar 13 2025 3:08 pm @Travis Nana & Suzy level is crazy lol.

Travis Mar 07 2025 5:54 pm Wow this young lady is impressive. Seen her in Badland Hunters, Hierarchy, and The Witch. Gorgeous actress, I place her on the level of Nana and Bae Suzy.

jul Mar 01 2025 4:32 am watch it because Hong Min Gi and Lee Chae Min

Mari Jan 02 2025 1:23 pm I mean... finally roh jeongeui and my fav genre dramas ?

jaehan Dec 16 2024 4:33 pm Bunny and the oppas is my favorite webtoon. I hope the drama is not disappointing. Can’t wait to watch it!!

Uqq55 Oct 23 2024 11:47 pm A new kdrama fans didn't know how good Roh Jeongeui?

Look at her previous works and you will see.

Lalala Oct 03 2024 8:02 pm @Winnie : it's more on writing and directing issue, beside the other MLs performance was also bad there

She was good in 18 again

Aka Oct 02 2024 11:54 am Jeongeui's latest post on her Instagram literally fits Bunny character... I hope it comes out well... Jeongeui fighting!

Viih Sep 19 2024 7:16 pm finally my failed couple from Hierarchy will be true here!! I'm so happyy

Mari Sep 18 2024 10:56 pm Not both of them failed with Jeongeui in Hierarchy and Dear.M before ?

External Links

Official Website

Crushology 101

Contents

User Rating

Profile

Plot Synopsis by AsianWiki Staff ©

Notes

Cast

Ban Hee-Jin's Group

Hwang Jae-Yeol's Group

Cha Ji-Won's Group

Yein University

Others

Trailers

Episode Ratings

Awards

Comments

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External Links