Yuuri is a faithful wife who is devoted to her husband, but she finds out that he has been visiting a brothel. To get revenge on her husband, she starts using a dating app and meets a serious-looking college student, and decides to meet him once... but that was a mistake. The man gives Yuuri an aphrodisiac, and the pleasure is imprinted on Kokoro and body. With an unbelievable pleasure imprinted on Kokoro, she forgets about her husband and seeks out sex on drugs... and she simply falls into depravity.