Crash Course in Romance — Ending Explained

The narrative's central mysteries and character arcs converge around past trauma and suppressed identities:

• The Secret Behind Chi-yeol's Past: Years prior, Chi-yeol's star student, Jeong Su-hyun, committed suicide after her abusive mother forced her into a test-paper leak scandal. The immense guilt caused Chi-yeol to develop severe psychological trauma, chronic insomnia, and an eating disorder.
• The Mystery of the Metal Ball Killer: The culprit targeting anyone threatening Chi-yeol is revealed to be his mild-mannered manager, Ji Dong-hee. Dong-hee is actually Jeong Seong-hyeon, the younger brother of the deceased Su-hyun. After his sister's suicide and murdering his abusive mother, he created a fake identity and devoted his life to serving Chi-yeol as an absolute idol. When Haeng-seon and Hae-yi alter Chi-yeol's priorities, Dong-hee attempts to eliminate them.
• Climax and Resolution: Hae-yi discovers Dong-hee's secret, gets chased, and is struck by a car, falling into a coma. When Dong-hee attempts to kill her in the hospital, Chi-yeol confronts him on the rooftop, where Dong-hee jumps to his death upon realizing his mission is shattered. Hae-yi chooses Haeng-seon as her true mother despite the brief return of her biological mother. The story closes with Hae-yi entering medical school, parents reforming, Jae-woo finding love with Young-joo, and Chi-yeol and Haeng-seon mutually proposing on the street.

The series can be analyzed through three primary critical lenses:

• Domestic Healing Allegory: The narrative functions fundamentally as an intimate fairy tale about two broken adults finding wholeness through mutual care, family solidarity, and shared meals.
• Sociological Satire: Emphasizes how institutions and societal expectations turn children into status symbols and adults into predatory gatekeepers, showing academic success achieved at the expense of human empathy.
• Psychological Tragedy: Focuses on the tragic undercurrent of Ji Dong-hee's descent into madness as the extreme byproduct of an abusive educational upbringing and familial neglect.