Mio, a new cleaning staff member, is assigned to the special location of the company president's office. President Shigeru is well-respected and highly competent at work, but has a reputation for being strict with women. Shigeru immediately begins approaching Mio, who tries to keep things casual, but gradually finds herself overwhelmed. Though her mind tells her it's wrong, her body betrays her, instinctively responding until she's eventually drawn completely into Shigeru's trap...