Native Title	바니와 오빠들
Also Know as	Bunny and Oppas, Bunny and Her Boys, Baniwa Oppadeul
Director	Kim Ji Hoon
Writer	Lee Seul, Sung So Eun, Ni-Eun (web comic)
Distributor	MBC
Air Time	Friday & Saturday 21:50
Content Rating	15+ - Teens 15 or older
Runtime	12 episodes
Genre	Comedy, Romance, Youth
Language	Korean
Country	South Korea
Release Date	2025-04-11
End Date	2025-05-17

"Crushology 101" (Korean: 바니와 오빠들, literal title: "Bunny and Her Boys") is a 2025 South Korean romantic comedy coming-of-age drama. Adapted from the beloved Kakao webtoon by Ni-eun, it’s written by Sung So-eun and Lee Seul, and directed by Kim Ji-hoon. The series originally aired on MBC TV from April 11 to May 17, 2025, running for 12 episodes, each approximately 60 minutes long.

Plot

The story centers on Ban Hee-jin, best known as "Bunny," a top sculpture student at Yein University. After her trusting first boyfriend – chosen for his personality – betrays her, she vows never to fall for someone just on looks alone again. But when four handsome, intriguing men enter her life – each offering a different kind of affection and charm – Bunny’s romantic principles are hilariously and heartwarmingly challenged.

It’s a “reverse harem” setup, but with a grounded, introspective spin: the series highlights Bunny’s emotional growth and exploration of what love truly means.

Cast & Characters

Main Cast

Roh Jeong-eui as Ban Hee-jin (“Bunny”)

The heart of the series, Bunny is a talented sculpture student at Yein University. Known for her optimism and sincerity, she experiences a painful betrayal by her first boyfriend. This makes her determined never to fall for someone based on appearances alone.

Bunny’s journey is about redefining her idea of love: moving from superficial attraction to seeking emotional value. Her nickname “Bunny” reflects both her innocent warmth and her tendency to hop into situations with curiosity.

Lee Chae-min as Hwang Jae-yeol

A senior in architecture with a charming smile and composed personality. Jae-yeol is practical, reliable, and naturally protective, embodying the “boyfriend material” archetype.

He represents stability and maturity, often helping Bunny stay grounded when she’s overwhelmed.

His chemistry with Bunny is slow-burn, creating one of the most anticipated ships in the series.

Jo Joon-young as Cha Ji-won

The playful and mischievous junior, Ji-won is the most vibrant of Bunny’s circle. Quick with jokes and pranks, he brings levity to heavy moments.

Beneath his clownish exterior is deep sensitivity, and his unwavering loyalty to Bunny makes him a fan-favorite.

Ji-won represents the theme of “hidden depth” – someone who may not seem serious at first but proves dependable when it matters most.

Kim Hyun-jin as Jo A-rang

A mysterious literature student with a brooding aura. Known for his thoughtful silences and cryptic one-liners, A-rang quickly becomes the “enigmatic” member of Bunny’s suitors.

His emotional backstory – marked by family pressures and unspoken grief – unfolds slowly, giving the series its dramatic weight.

His connection with Bunny lies in shared vulnerability, as both use art (sculpture and writing) to express what they cannot say aloud.

Hong Min-gi as Jin Hyun-oh

A popular athlete majoring in physical education. Outgoing, straightforward, and a little reckless, Hyun-oh brings high energy to the friend group.

His storyline explores the tension between passion and responsibility, especially as his athletic career clashes with his desire for a normal campus life.

For Bunny, Hyun-oh represents honesty and directness in love – someone who never hides his feelings.

Kim Min-chul as Dong-ha

Bunny’s childhood friend, sweet but often overshadowed by the more dynamic suitors.

His “boy-next-door” presence offers comfort and familiarity, making him Bunny’s emotional anchor.

Fans often root for Dong-ha as the “safe choice,” though his quiet love risks being overlooked.

Supporting Cast

Choi Ji-su as Bunny’s best friend – witty, practical, and Bunny’s voice of reason throughout her romantic entanglements.

Lee Ji-hoon as Bunny’s father – a warm yet slightly overprotective parent who provides heartfelt moments of family grounding.

Nam Kyu-hee, Wang Bit-na, Kim Hyun-mok, Jeon Joon-ho, and Jeon So-young appear in secondary roles, enriching the campus setting with humor and realism.

Dynamic Highlight

Each male character is written to embody a different “type” of crush — protective senior, playful friend, mysterious artist, popular athlete, and childhood sweetheart. This balance brings the “reverse harem” dynamic to life, while Bunny’s choices and growth remain the emotional core.

Reception

"Crushology 101" scored poorly in domestic ratings – with an average around 1.0% and a low of 0.7%, tying a record for the lowest ratings ever recorded for a primetime terrestrial K-drama in South Korea.

Despite this, the series resonated globally. It trended internationally and drew strong viewership from overseas fans, following the successful pattern of other webtoon-based youth romances.

Fan opinions were mixed: Reddit users praised Roh Jeong-eui’s performance, but many felt the storyline didn’t create lasting emotional investment. One viewer said, “At least it ended,” while others noted the last episode made some redeeming strides.

Fun Facts & Behind the Scenes

Adaptation with Depth

While based on the popular webtoon "Bunny and Her Boys", the series aims for a more realistic tone – focusing on emotional values over superficial charms.

Beauty Meets Campus Aesthetic

Filmed around Yein University settings adorned with cherry blossoms, the series delivers visual charm in every frame.

Delayed Premiere

Its launch was delayed from April 4 to April 11, 2025, due to coverage of South Korea’s presidential impeachment ruling.

Harem Trope, Reimagined

Instead of the usual flashy romance, it invites viewers into Bunny’s self-discovery journey – and gives us not one, but four very different suitors.

Legacy

Though domestic reception was lukewarm, "Crushology 101" tapped into the international appetite for soft, aesthetically pleasing youth romance dramas. It showcased Roh Jeong-eui’s talent and offered a gentle, art-school–flavored take on young love – a concept destined to appeal to fans of heart-fluttering, coming-of-age storytelling.

Where to Watch

In South Korea: TVING and Wavve.
In Japan: U-NEXT.
Globally: available for streaming in select regions on Viu, KOCOWA+, prime video, Rakuten Viki.

Gallery

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