One: Kagayaku Kisetsu e

Orihara Kouhei returns to his hometown after a long disappearance, seeking to fulfill the promises he made to several girls from his childhood. Haunted by a tragic past and struggling with memory loss, Kouhei is surrounded by an eerie atmosphere that blurs the lines between reality and dreams. Memories from his past begin to resurface, but fragmentary and disjointed, leaving gaps in his recollections. As he attempts to rebuild his life, the enigmatic and dreamlike quality of his surroundings threatens to consume him, making it difficult to distinguish between what is real and what is a product of his own fragmented memories.