You meet someone you've buried in memory, and suddenly all the parts of yourself you've worked to leave behind are standing in front of you, asking why you abandoned them. The show fractures its timeline to prove that the past never actually left, it just waited. Yuu's obsession with being perfect was the thing that destroyed the person he needed most, and watching him realize that is watching someone's entire identity shatter in real time.
A studious overachiever named Himura Yuu has built his life around academic excellence, until a mysterious girl named Amamiya Yuuko appears and claims to know him from somewhere he can't remember. Her presence cracks open a sealed chapter of his past, one filled with forgotten childhood memories and unresolved grief. Yuu must reckon with the weight of what he's tried to leave behind. Parallel to this, Kuze Shuuichi carries an air of detached charm that masks a deeper desire for solitude. His carefully constructed walls crumble when Mizuki Hayama enters his life, drawn to the raw emotion he pours into his violin. She refuses to accept his distance, determined to understand the person behind the music. As she pushes closer, he pulls away, caught between the safety of isolation and the vulnerability that connection demands. These interlocking stories weave supernatural elements with raw human longing, asking whether we can truly escape our pasts or if they inevitably find us.