Hana's friend from her husband, Saeki, pays a long-awaited visit, and she happily greets him. However, this reunion becomes a turning point in her life. When Hana becomes curious about the anal beads her husband brought home from a drinking party, she secretly tries them out. But Saeki discovers her secret. Powerless to resist, she ends up being taken anally by him. The pleasure isn't fleeting—it leaves behind a burning heat deep within her body. Unable to suppress the growing ache, Hana's days of restless longing begin.