Crash Course In Romance (2023) | Episode 15

: The mystery of the metal ball serial killer concludes as Chi-yeol discovers Dong-hui’s true identity as Seong-hyeon. After a tense confrontation on a hospital rooftop, Dong-hui refuses Chi-yeol’s help and drops to his death, citing his desire to "protect" the tutor as his twisted motivation.

Episode 15 of Crash Course in Romance , titled "The Result of Chance and Inevitability," serves as a dramatic turning point that resolves the series' primary thriller subplot while introducing new family tensions. The episode shifts from the intense pursuit of the "ball bearing killer" to a more emotional focus on the consequences of parental pressure and the definition of true family. Crash Course in Romance (2023) Episode 15

: Hae-yi finally wakes up from her coma, but her recovery is complicated by the return of her biological mother, Haeng-ja. Hae-yi struggles with resentment toward her mother’s sudden and selfish reappearance. : The mystery of the metal ball serial

: While Chi-yeol struggles with the trauma of Dong-hui’s death, Haeng-seon remains his primary source of comfort, helping him move past the guilt of the past. The episode shifts from the intense pursuit of

: In a major cliffhanger, Hae-yi announces to her family during her homecoming party that she intends to leave with Haeng-ja and move to Japan, a decision that leaves Haeng-seon and Jae-woo stunned.

Watch these recaps and deep dives to catch all the details and fan theories from this pivotal episode: