The amnesiac actor, Kotori Sakuma, who lost his past memories in an accident, travels to Tokyo with his troupe to prepare for the premiere of a new script. However, his previously peaceful life is shattered by an unexpected event—something he says suddenly possesses unknown power. An alternate side of the world, which ordinary people cannot touch, reveals its secrets to him at this moment. Before investigating his forgotten past, which may hold the key to answering his confusion, the suspicious death of his friend drags him into a murder accusation. Join Kotori Sakuma in Tokyo on the eve of Valentine’s Day in 1921, as he explores the unknown conspiracy and the forgotten chapters of his life.