Since rescuing Mao Satomi from a car accident when they were young, Tetsu Harisugawa has maintained a friendly relationship with her. Despite his feelings for her, he hesitates to confess out of fear for their current friendship.
But everything changes when Satomi purchases a mysterious mirror from a thrift store and nearly gets hit by a car once again. Harisugawa rescues her once more, only to find himself trapped inside the mirror she bought.
Together, they work to break the curse of the mirror and restore Harisugawa's freedom. However, their attempts are complicated by misunderstandings that arise due to their friendly relationship and Harisugawa's unawareness of Satomi's feelings for him.
