Unrequited love with former female colleague and its ending

The film is about the unrequited love of a shy guy with a beautiful female colleague Tsukasa Aoi. Because of his shyness, he did not confess his love to her, and then she thought about working to get married and stay at home. work in the market. Even though Tsukasa was married, that unrequited love still remained unchanged. He was so crazy that he plastered pictures of Tsukasa all over his bedroom. And then fate let him meet her again. His long-suppressed emotions made him unable to stop the thought of taking over this body.