The story follows two young people who once lost themselves in the shadows of depression. Their journeys are told through the metaphor of butterflies—beginning as caterpillars, struggling to survive as pupae, and finally emerging to soar into the light.

One is Mai, a young woman who has battled depression for seven years and repeatedly engaged in self-harm. The other is Time, a man living with bipolar disorder and severe depression, who has faced death three times. Together, they must rise above their darkest moments and learn to love themselves once again.