Lin Shen, a 28-year-old genius illustrator, fell into the abyss of depression at the peak of his career. By chance, he discovers a mysterious blank notebook, starting a journey of self-salvation that faces the darkness within. In escaping, struggling and resisting, he learned to talk to his own shadow and rebuild light on the ruins of despair. This is not a story about "defeating" depression, but a healing journey about "reconciliation" and "symbiosis."