A Precious Keychain

Natsuru, a young woman, has lost her cherished keychain, an item that holds sentimental value to her. She consults with her classmate Miori, who possesses remarkable psychic abilities, and learns that keeping a treasured item close can help with relationships. In an attempt to strengthen her bond with her childhood friend Eitaro, Natsuru takes her keychain on a date with him. However, during the outing, the keychain is misplaced, setting off a chain of events that challenges Natsuru's perceptions of love and relationships.