Middle-aged worker Jae-bok recently lost a lawsuit asking for the invalidation of his recent dismissal. Jae-bok returns home but what awaits him are his daughters neglecting him and the feeling of worthlessness.

Around ten teenagers live in a world where anyone can be whoever they want and create any story they wish. Amidst the pitch-black night of Lisan City, Alstroemeria Forest, and Ashua Island, their imagined stories flow through myriad choices, seeking out faint glimmers of light.

Shota, a machinist who dedicated his life to his work, prepares for his final business trip to Korea before retiring. Meanwhile, Daesung heads to Japan to win back his ex-girlfriend. The two men happen to meet at a ramen shop on the first day of their journeys. When Shota's resignation letter and Daesung's love letter are swapped, an unexpected story begins.