Takeshi Tanaka, a Tokyo office worker, becomes "unstuck in time," experiencing endless cycles of life where he meets Mei, his future wife and mother of their daughter Yuki, and learns that his consciousness loops through moments of his life, with his love for them remaining a constant amid the surreal changes.

Tetsuya, grieving the sudden death of his wife Akiko, finds himself trapped in a cycle of sorrow, but when an ad offering a synthetic version of her appears, he faces a moment of profound emotional conflict, ultimately choosing to say goodbye.