Kanna, a career woman working at a major corporation, is well-liked within the company and always wears a smile, leading others to think she is a calm person. In reality, she has an immense sex drive and cannot maintain her sense of self without masturbating. The desire-driven monster created by years of self-pleasure brainwashing suddenly finds herself with Ena, a junior colleague who missed the last train and barges in, half-forcibly staying over… Kanna, who had been enduring the unexpected no-notice room-sharing abstinence, gradually loses her sanity and begins to masturbate using her junior's belongings…
