Just as Hee-jin and Jae-yeol find happiness, disaster strikes Hee-jin's family finances and her crucial art project is jeopardized. Reeling from setbacks and leaning on Ji-won for support, she unknowingly fuels Jae-yeol's suspicions. Their fairytale beginning crashes hard against grim reality.

Hee-jin comes back to Korea after a year in the US. As she returns to school, she encounters Jae-yeol, her ex. Meanwhile, she also runs into Hyun-o, her first crush from when she was little. As the three coincidentally keep bumping into each other, a whirlwind of emotions ensues.