His son Tatsuya is depressed after breaking up with his girlfriend. Her mother, Hana, can't help but want to encourage and comfort her somehow. However, this is her first time and she doesn't know how to approach her. Then, the reason for her unexpected heartbreak came out of Tatsuya's mouth. Actually, I can't have sex properly due to premature ejaculation. There's nothing I can do about it. I was momentarily surprised by this unexpected sexual problem.