I'm Shiina Yuichi. I'm an ordinary office worker. My wife Sora, whom I married a few months ago, is actually a high school girl. She's currently attending school in preparation for graduation. However, if the school finds out about our marriage, she'll be expelled, so this is a secret between just the two of us. There are only six months left until graduation... I thought it would be okay, but recently my wife has been sighing a lot, so when I confronted her, her homeroom teacher found out about the secret, and I discovered that she had been making sexual demands on me...