lily, a painter, is trapped in an unfinished relationship and a long-unfinished painting. She isolates herself in her studio, using art as a refuge to escape from the deep emotional wounds within her. Until one day, Mikage appears — bringing warmth and care, like a gentle light — softly knocking on the door of Hakugawa’s closed heart. Through small yet sincere moments of daily interaction, the two gradually grow closer. But unable to overcome her own fears, Hakugawa chooses to retreat. The story unfolds through a nonlinear timeline, weaving between memory and reality. Years later, after the end of a marriage, she finds herself alone, tidying up a room. Amid boxes and dust-covered sketchbooks, she opens up long-buried memories. She hesitates over whether to dial that long-forgotten number — and finally, in silence, makes her choice.