Rika, 27 years old, married for four years. Her husband is busy with work, and their time together continues to drift apart. With no sex in their marriage, she finds herself overwhelmed by her G-cup body, day after day. To cope with loneliness, she regularly relieves her sexual desires through masturbation. Secretly, she begins visiting love hotels, revealing her cute, natural housewife charm. Stepping into a relationship with another man outside her marriage, she finds herself unable to escape. As a submissive wife, she indulges endlessly in illicit sex at the love hotel. Driven by desire, yet deep in her heart, her feelings for her husband waver.