Crushology 101

Crushology 101
Promotional poster
Hangul
바니와 오빠들
Lit.Bunny and Her Boys
RRBaniwa oppadeul
MRPaniwa oppadŭl
Genre
Based onBunny and Her Boys
by Ni-eun
Written by
Directed byKim Ji-hoon[3]
Starring
Music byLee Kwang-hee[4]
Country of originSouth Korea
Original languageKorean
No. of episodes12
Production
Executive producers
Producers
  • Lee Dae-yong[3]
  • Jang Se-jeong[3]
Production companyKakao Entertainment
Original release
NetworkMBC TV
ReleaseApril 11 (2025-04-11) –
May 17, 2025 (2025-05-17)

Crushology 101 (Korean: 바니와 오빠들) is a 2025 South Korean television series starring Roh Jeong-eui, Lee Chae-min, Kim Hyun-jin, Kim Min-chul, Hong Min-gi and Cho Jun-young. The series depicts the love story of the female protagonist Bunny, who is surrounded by four attractive boys after breaking up with her dark first love. It premiered on MBC TV on April 11, 2025, and aired every Friday and Saturday at 21:50 (KST).[1][5] It is also available for streaming on Kocowa and Viu in selected regions.

Its eighth episode on May 3, 2025 drew a rating of 0.7%, the lowest ever recorded for a drama airing in the prime time slot on a terrestrial television network. This record is shared with the February 20, 2025 episode of Kick Kick Kick Kick (which thereafter was moved to a late-night time slot and received lower ratings). Its peak single-episode rating of 1.5% and its overall average ratings of 1.0% are also the lowest ever recorded for a drama airing entirely in the prime time slot on a terrestrial television network.[6][7]

Synopsis

The drama follows a college student, Bunny, who breaks up with her first love after a disastrous relationship. Healing from a broken heart, she is suddenly courted by not one but four attractive men.[8]

Cast and characters

Main

A college student. He is Jae-yeol's best friend, and he wants to become an art director.

Supporting

  • Choi Ji-su as Nam Kkot-nim[14]
Bunny's best friend.
  • Lee Ji-hoon as Ban Yeong-min[15]
Bunny's father.
Bunny's ex-boyfriend
A campus goddess and Bunny's childhood friend. She has a warm personality and genuinely supports Bunny.
She is Jaeyeol's first love and the youngest sports announcer.

Production

Development

Crushology 101 is written by Sung So-eun, directed by Kim Ji-hoon, and produced by Kakao Entertainment. It is based on the Kakao Webtoon Bunny and Her Boys by author Ni-eun, which has recorded 170 million cumulative views.[9][21]

Casting

On April 30, 2024, Hankook Ilbo reported that Roh Jeong-eui had been cast as the lead role in the series.[22] On May 1, it was reported that Lee Chae-min had decided to appear and was about to start filming.[21] On September 19, Roh, Lee, and Cho Jun-young were confirmed.[1]

Original soundtrack

Crushology 101 OST Special
Soundtrack album by
Various Artist
ReleasedMay 17, 2025[23]
GenreSoundtrack
LanguageKorean
LabelKakao Entertainment

Part 1

Released on April 11, 2025[24]
No.TitleLyricsMusicArtistLength
1."Trace of Stars" (별의 흔적)ALDRAIN, Park Ah-reumALDRAIN, CHAEIPAPA, AVOKIDISA4:24
2."Trace of Stars" (instrumental)   4:24

Part 2

Released on April 12, 2025[25]
No.TitleLyricsMusicArtistLength
1."Sunshine"Go un, ALDRAIN, Lee Yoon-seoGo unDENI3:56
2."Sunshine" (instrumental)   3:56

Part 3

Released on April 18, 2025[26]
No.TitleLyricsMusicArtistLength
1."As One In Your Painting" (너의 그림 속에 하나가 되어)ALDRAINSENTIMENTAL SCENERYJung Se-woon3:26
2."As One In Your Painting" (instrumental)   3:26

Part 4

Released on April 26, 2025[27]
No.TitleLyricsMusicArtistLength
1."By Your Side" (매일이 되어줄게)Jinsol, Leeseon, SanhaeJinsol, LeeseonWoody3:59
2."By Your Side" (instrumental)   3:59

Part 5

Released on May 2, 2025[28]
No.TitleLyricsMusicArtistLength
1."What else" (내가 뭘 더)eldon, Jaedogi, MooFeldon, Jaedogi, MooFJung Seung-hwan3:10
2."What else" (instrumental)   3:10

Part 6

Released on May 3, 2025[29]
No.TitleLyricsMusicArtistLength
1."You pour down on me" (네가 쏟아진다)Choi Han-solChoi Han-sol, Choi Young-hoon, WukDragon Pony4:00
2."You pour down on me" (instrumental)   4:00

Part 7

Released on May 9, 2025[30]
No.TitleLyricsMusicArtistLength
1."Our sea" (우리의 바다)AVOKID, ALDRAIN, CHAEIPAPAALDRAIN, CHAEIPAPA, Oh Sung-hwanKyoungSeo4:30
2."Our sea" (instrumental)   4:30

Part 8

Released on May 10, 2025[31]
No.TitleLyricsMusicArtistLength
1."End of a Day" (하루의 끝)Kim Beom-joo, Kim Si-hyukKim Beom-joo, Kim Si-hyukJeong Hyo-bean3:56
2."End of a Day" (instrumental)   3:56

Ratings

Average TV viewership ratings (Nationwide)
Ep. Original broadcast date Average audience share

(Nielsen Korea)[32]

1 April 11, 2025 1.3% (34th)
2 April 12, 2025 0.9% (59th)
3 April 18, 2025 1.5% (30th)
4 April 19, 2025 1.1% (47th)
5 April 25, 2025 1.1% (36th)
6 April 26, 2025 0.9% (54th)
7 May 2, 2025 0.8% (47th)
8 May 3, 2025 0.7% (69th)
9 May 9, 2025 1.2% (32nd)
10 May 10, 2025 0.8% (58th)
11 May 16, 2025 0.9% (45th)
12 May 17, 2025 0.8% (61st)
Average 1.0%
  • In the table above, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.

Awards and nominations

Year Award ceremony Category Recipient Result Ref.
2025 Korea Drama Awards Best New Actress Roh Jeong-eui Nominated [33]
2025 MBC Drama Awards Best Couple Award Lee Chae-min with Roh Jeong-eui Pending [34]

References

  1. ^ a b c Lee, Min-ji (September 19, 2024). '바니와 오빠들' 노정의-이채민-조준영 출연확정, 캠퍼스 로맨스 온다 [공식] ['Bunny and the Brothers' Noh Jeong-eui, Lee Chae-min, Jo Jun-young confirmed to appear, campus romance is coming [Official]] (in Korean). Newsen. Retrieved September 19, 2024 – via Naver.
  2. ^ Oh, Myeong-eon (September 19, 2024). 노정의·이채민, 청춘 로맨스 드라마 '바니와 오빠들' 출연 [Noh Jeong-ui and Lee Chae-min to star in youth romance drama 'Bunny and the Brothers'] (in Korean). Yonhap News Agency. Retrieved September 19, 2024 – via Naver.
  3. ^ a b c d e f g 바니와 오빠들: 프로그램 소개 [Crushology 101: Program introduction]. iMBC (in Korean). Retrieved March 12, 2025.
  4. ^ Beak, Ah-young (April 1, 2025). '바니와 오빠들' 정승환→정세운, 막강 OST 라인업 공개 ['Bunny and the Brothers' Jung Seung-hwan → Jung Se-woon, Powerful OST Lineup Revealed]. enews.imbc.com. Retrieved April 1, 2025 – via Never.
  5. ^ Yoo, Ji-hye (April 3, 2025). '바니와 오빠들' 11일로 첫방 연기…탄핵 선고 특보 편성 ['Crushology 101' First Episode Postponed to the 11th… Special Report on Impeachment Verdict]. JTBC. Retrieved April 2, 2025 – via Naver.
  6. ^ Kim, Kyung-yoon (May 18, 2025). "MBC 드라마 '바니와 오빠들' 0%대 시청률로 씁쓸한 퇴장" [MBC drama 'Bunny and the Brothers' ends bitterly with 0% viewership ratings] (in Korean). Yonhap News Agency. Retrieved May 18, 2025.
  7. ^ Yeon, Hwi-seon (May 9, 2025). "지상파 청춘물 필패"...'바니와 오빠들'·'사계의 봄' 충격의 0% 시청률 ["Terrestrial youth dramas are a sure failure"...'Bunny and the Brothers' and 'Spring of the Four Seasons' shocking 0% viewership ratings] (in Korean). OSEN. Retrieved May 18, 2025 – via MSN.
  8. ^ '바니와 오빠들', 청춘들이 펼치는 핑크빛 캠퍼스 [종합]. Hankook Ilbo (in Korean). 2025-04-03. Retrieved 2025-05-19.
  9. ^ a b c Choi, Yu-na (September 19, 2024). 노정의X이채민X조준영, '바니와 오빠들' 출연...2025년 상반기 첫 방송 [Noh Jeong-ui X Lee Chae-min X Jo Jun-young, 'Bunny and the Brothers' appearances... first broadcast in the first half of 2025] (in Korean). Sports Donga. Retrieved September 19, 2024 – via Naver.
  10. ^ Park, Seo-hyun (September 19, 2024). 조준영, MBC '바니와 오빠들' 출연 "좋은 에너지로 캠퍼스의 설렘 전달할 것" [Jo Jun-young, MBC 'Bunny and the Brothers' Appearance "Will Convey Campus Excitement with Good Energy"] (in Korean). Herald Pop. Retrieved September 19, 2024 – via Naver.
  11. ^ Yeon, Hwi-seon (November 4, 2024). '치얼업' 직진남 김현진, '바니와 오빠들' 출연...실력파 조각가 변신 [공식] ['Cheer Up' Straightforward Man Kim Hyun-jin, Appears in 'Bunny and Her Boys'... Transforms into a Talented Sculptor [Official]] (in Korean). OSEN. Retrieved November 5, 2024 – via Naver.
  12. ^ Choi Soo-bin (February 25, 2025). '바니와 오빠들' 노정의·이채민, 설렘 가득 캠퍼스 라이프 ["Bunny and Oppas" Roh Jeongeui and Lee Chaemin, a Campus Life Full of Excitement]. The Fact (in Korean). Retrieved February 25, 2025 – via Naver.
  13. ^ Kim, Chae-yeon (October 16, 2024). 김민철, 이채민 절친 됐다..'바니와 오빠들' 출연 [공식] [Kim Min-chul and Lee Chae-min become close friends.. Appear on 'Bunny and Her Boys' [Official]] (in Korean). OSEN. Retrieved October 16, 2024 – via Naver.
  14. ^ Gong, Min-a (October 16, 2024). 최지수, '바니와 오빠들' 캐스팅...노정의·이채민과 호흡 [Choi Ji-su, cast in 'Bunny and Her Boys'... Working with Noh Jeong-ui and Lee Chae-min] (in Korean). The Fact. Retrieved October 16, 2024 – via Naver.
  15. ^ Ahn, Yoon-ji (November 6, 2024). 이지훈, 노정의 父 된다..'바니와 오빠들' 출연 확정 [공식] [Lee Ji-hoon becomes Noh Jeong's father.. Confirmed to appear in 'Bunny and Her Boys' [Official]] (in Korean). Star News. Retrieved November 6, 2024 – via Naver.
  16. ^ 등장인물. MBC Entertainment. April 5, 2025.
  17. ^ Son Bong-seok (November 12, 2024). 배우 전준호, '바니와 오빠들' 춘식 역 출연 확정 [Actor Jeon Joon-ho Cast as Chun-sik in 'Bunny and Her Boys']. Sports Kyunghyang (in Korean). Retrieved November 22, 2024.
  18. ^ Jeon Youmg-mi (December 24, 2024). "[1월호 커버스토리] 배우 왕빛나의 포토제닉한 순간들" [[January Cover Story] Photogenic moments of actress Wang Bit-na]. Woman Chosun (in Korean). Retrieved December 27, 2024.
  19. ^ Kim Wongyeom (January 22, 2025). 남규희, '바니와 오빠들'로 캠퍼스 여신 변신 [Nam Gyuhee transforms into campus goddess with 'Bunny and Oppas']. SPOTV NEWS (in Korean). SPOTV. Retrieved January 28, 2025.
  20. ^ Ahn Byung-gil (March 13, 2025). 전소영 '바니와 오빠들' 출연···노정의·이채민과 호흡 [Jeon So-young to appear in 'Crushology101'···Working with Roh Jeongeui and Lee Chaemin] (in Korean). Kyunghyang Shinmun. Retrieved March 18, 2025.
  21. ^ a b Kim, Na-yeon (May 1, 2024). [단독] 이채민·노정의 두번째 만남..'뮤뱅' 하차→'바니와 오빠들' 출연(종합) [[Exclusive] Lee Chae-min and Noh Jeong's second meeting... 'Music Bank' departure → 'Bunny and the Brothers' appearance (comprehensive)] (in Korean). Retrieved September 19, 2024 – via Naver.
  22. ^ Woo, Da-bin (May 1, 2024). [단독] '대세' 노정의, MBC '바니와 오빠들' 주연 발탁 [[Exclusive] 'Trendy' Noh Jeong-ui, selected as lead role in MBC's 'Bunny and the Brothers'] (in Korean). Hankook Ilbo. Retrieved September 19, 2024 – via Naver.
  23. ^ "바니와 오빠들 OST Special" [Crushology 101 OST Special]. Melon. Retrieved December 14, 2025.
  24. ^ "별의 흔적 (바니와 오빠들 OST Part.1)" [Trace of Stars (Crushology 101 OST Part.1)]. Melon. Retrieved December 14, 2025.
  25. ^ "Sunshine (바니와 오빠들 OST Part.2)" [Sunshine (Crushology 101 OST Part.2)]. Melon. Retrieved December 14, 2025.
  26. ^ "너의 그림 속에 하나가 되어 (바니와 오빠들 OST Part.3)" [As One In Your Painting (Crushology 101 Part.3)]. Melon. Retrieved December 14, 2025.
  27. ^ "매일이 되어줄게 (바니와 오빠들 OST Part.4)" [By Your Side (Crushology 101 Part.4)]. Melon. Retrieved December 14, 2025.
  28. ^ "내가 뭘 더 (바니와 오빠들 OST Part.5)" [What else (Crushology 101 Part.5)]. Melon. Retrieved December 14, 2025.
  29. ^ "네가 쏟아진다 (바니와 오빠들 OST Part.6)" [You pour down on me (Crushology 101 Part.6)]. Melon. Retrieved December 14, 2025.
  30. ^ "우리의 바다 (바니와 오빠들 OST Part.7)" [Our sea (Crushology 101 Part.7)]. Melon. Retrieved December 14, 2025.
  31. ^ "하루의 끝 (바니와 오빠들 OST Part.8)" [End of a Day (Crushology 101 Part.8)]. Melon. Retrieved December 14, 2025.
  32. ^ 바니와 오빠들 시청률 [Crushology 101 ratings] (in Korean). Nielsen Korea. Retrieved April 11, 2025.
  33. ^ Kim Jun-hyuk (August 27, 2025). "코리아드라마페스티벌, 16회 어워즈 본상 투표 28일 시작" [Korea Drama Festival, 16th Awards Main Prize Voting Begins on the 28th]. TTL News (in Korean). Retrieved September 4, 2025.
  34. ^ Lee Mi-young (December 15, 2025). "MBC연기대상, '바니' 이채민·노정의→'이강달' 강태오·김세정⋯베커 후보" [MBC Drama Awards: ‘Crushology 101’ Lee Chae-min & Roh Jeong-ui → ‘Moon River’ Kang Tae-oh & Kim Se-jeong… Best Couple nominees]. JoyNews24 (in Korean). Retrieved December 22, 2025.
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