Ami and Haruo have been married for three years, enjoying a happy married life. However, Haruo has become increasingly busy with work, leading to a sexless relationship. Noticing this, Ami's father-in-law begins to approach her every day. Unable to confide in anyone, Ami gradually finds herself overwhelmed by her father-in-law's advances. Eventually, she begins to accept the situation. How her relationship with her father-in-law will evolve, and what emotional changes will occur within Ami, remains to be seen.