Ban Hee-jin, nicknamed Bunny, is introduced as a talented sculpture major at Yein University who has just been humiliated by her first boyfriend, an unattractive and disrespectful man who intended to use her. After their breakup, Bunny vows to only date handsome men, aligning her romantic standards with her artistic appreciation for beauty and the divine ratio in sculpture.

Bunny meets Hwang Jae-yeol, a warm and charismatic design student, and they begin to develop a connection. However, Jae-yeol's friend, Jay Y'all, warns Bunny not to trust Jae-yeol, suspecting him of being a womanizer. Despite these warnings, Bunny visits Jae-yeol's studio, where he teaches her how to sculpt, gently holding her hand, creating a romantic atmosphere. This moment is interrupted by Jay Y'all, who deliberately sends a food delivery to the studio to disrupt their meeting, revealing his jealousy and suspicion.

Determined to uncover the truth about Jae-yeol, Jay Y'all plays back a recording from a microphone used during an interview, capturing Jae-yeol's conversation with another girl. Jay Y'all rushes to the park where Bunny and Jae-yeol are walking and forcibly pulls Bunny away without explanation. Bunny breaks free, confused and demanding answers, but Jay Y'all remains desperate and secretive about his motives.

Later, Bunny and Jae-yeol confront each other about their feelings and misunderstandings. They return to the studio only to find smoke coming from the door, indicating a fire. They rush inside, fearing for Bunny's safety. It turns out that a barbecue smoke had triggered the fire alarm, and in a panic, Ha, another character, threw water on the grill, causing even more smoke and activating the sprinkler system, creating a chaotic mess.

As the story progresses, Jae-yeol apologizes to Bunny and expresses regret for past mistakes. Their relationship strengthens as they navigate their future together. Jae-yeol works on repairing his strained relationship with his mother, while Bunny's parents warmly welcome Jae-yeol back into their lives. Bunny decides to focus on her career path and settles on art designing as her future direction.

Meanwhile, supporting characters experience their own developments: Bo Bae debuts as an actress with the support of her boyfriend Do-ha; Ji-won chooses to stay in Korea after his sister assures him she can manage on her own; and Kkot-nim starts developing a crush on Ji-won.

The series concludes with Jae-yeol and Bunny happily dating and embracing their futures together, having overcome misunderstandings, jealousy, and personal growth challenges. The final scenes emphasize their strengthened bond and hopeful outlook on life and love.

The ending of Crushology 101 shows the main couple, Bunny and Jae-yol, reunited and growing stronger together as they embrace their futures. Jae-yol works on repairing his relationship with his mother, and Bunny decides to pursue a career in Art Designing. Other characters also find their paths: Bo Bae debuts as an actress with support from her boyfriend Do-ha, Ji-won stays in Korea encouraged by his sister, and Kkot-nim develops a crush on Ji-won. The series closes on a hopeful note with Bunny and Jae-yol happily dating and looking forward to new beginnings.

In the final episode of Crushology 101, the story unfolds scene by scene, focusing on the resolution of the main characters' arcs and their emotional journeys.

The episode opens with Bunny and Jae-yol reunited after previous conflicts. They share moments of laughter and tenderness, signaling the rekindling of their relationship. Jae-yol sincerely apologizes to Bunny, which helps to redeem his character in the eyes of the audience. This apology is a pivotal moment, showing his growth and commitment to making things right.

Next, the narrative shifts to Jae-yol's family life. He makes efforts to mend his strained relationship with his mother, indicating a desire to heal past wounds and build a supportive family environment. Meanwhile, Bunny's parents warmly accept Jae-yol back into their lives, symbolizing the merging of their worlds and the acceptance of their relationship by both families.

Bunny then contemplates her future career path. After some reflection, she decides to focus on Art Designing, marking a personal milestone where she chooses to pursue her passion and independence. This decision highlights her growth from being defined by her romantic entanglements to establishing her own identity and goals.

The story also follows Bo Bae, who finally makes her debut as an actress. Her boyfriend Do-ha remains a steady source of support, reinforcing the theme of supportive relationships throughout the series. Ji-won, another key character, chooses to stay in Korea after his sister assures him she can manage on her own. This decision opens the door for Kkot-nim, who starts developing a crush on Ji-won, hinting at new romantic possibilities beyond the main couple.

The final scenes depict Bunny and Jae-yol walking hand in hand, symbolizing their commitment to face the future together. The tone is light and hopeful, with moments of silliness and everyday joy, such as friends' love quarrels and parents meeting in a goofy manner. The show ends not with a definitive conclusion but with a sense of a new beginning, emphasizing that their story is just starting beyond the screen.

Each main character's fate is clear: Bunny and Jae-yol are together and optimistic about their future; Jae-yol has repaired family ties; Bunny is pursuing her passion; Bo Bae is launching her career; Ji-won remains in Korea with new romantic interest brewing for Kkot-nim. The ending leaves viewers with a warm, if somewhat understated, closure to the characters' journeys.

The TV show Crushology 101 (2025) does not have any publicly documented post-credit scenes. Available episode recaps, previews, and reviews, including those for the finale (episode 12), do not mention or describe any post-credit scenes or additional content after the credits roll. The focus remains on the main story arcs and character resolutions within the episodes themselves.

Therefore, based on current detailed sources and episode summaries, Crushology 101 does not include a post-credit scene.

The four attractive boys surrounding Bunny after her breakup are Hwang Jae-yeol, Cha Ji-won, Jo A-rang, and Jin Hyun-oh. Hwang Jae-yeol is a warm design student who plays a significant role in Bunny's life. Cha Ji-won is portrayed as a perfect chaebol heir. The specific personalities and roles of Jo A-rang and Jin Hyun-oh are less detailed in the sources, but they are part of the group that influences Bunny's journey in love and self-discovery.

Bunny's first boyfriend is described as a 'dark' and unpleasant character who humiliates her, leading to a painful breakup. This experience deeply affects Bunny's self-esteem and shapes her cautious approach to love, making her wary but also more self-aware. It motivates her to only date handsome men afterward, reflecting her struggle with trust and vulnerability in relationships.

During Bunny's visit to Jay's studio, she arrives excited but finds Jay Yol, who is jealous and suspicious of Jay's intentions. Jay Yol imagines a romantic kiss between Bunny and Jay, leading him to interfere by deliberately ordering food to the studio to interrupt them. Jay teaches Bunny how to sculpt, creating a romantic atmosphere that is abruptly broken by the delivery interruption. Later, Jay Yol forcibly takes Bunny away to the park, trying to protect her from what he suspects is Jay's womanizing, which causes confusion and tension among the characters.

The series portrays Bunny as a top sculpture student navigating college life while recovering from heartbreak. Her journey involves meeting and interacting with the four boys, each presenting new experiences and challenges. Bunny freely acknowledges her attraction to handsome men but remains cautious due to her past. The story explores her emotional growth, learning about love, trust, and self-awareness as she balances her feelings and friendships in a vibrant university setting.

Bunny's passion for sculpture is central to the plot, serving as both her personal focus and a setting for key interactions, such as her lessons with Jay at his studio. It symbolizes her creative and emotional expression, providing a backdrop for her growth and the unfolding of romantic and interpersonal dynamics. The art environment allows intimate moments that reveal character motivations and deepen relationships, particularly with Hwang Jae-yeol and others connected to her university life.

Crushology 101 is generally a lighthearted romantic comedy aimed at a teen and young adult audience, but it is not specifically designed as a family-friendly show for young children. The series contains typical elements of romantic dramas that might be sensitive for younger or more sensitive viewers.

Potentially objectionable or upsetting aspects include:

• Romantic and emotional themes involving breakups, self-esteem struggles, and complicated love interests, which may be intense or confusing for children.
• Some slow pacing and emotional tension scenes where characters avoid communication, which might be frustrating or emotionally taxing for sensitive viewers.
• A subplot involving a character's mother who is a serial lover, which includes adult relationship dynamics that might be inappropriate for children.
• Mild romantic tension and crush-related behaviors that are typical in teen romance dramas but may include awkward or emotionally charged moments.

There is no indication of explicit content, violence, or strong language, but the show's focus on romantic entanglements and emotional struggles suggests it is better suited for teenagers and older viewers rather than young children or very sensitive audiences.