Summer of a high school third grader. 18-year-old male high school student Takae Reika who struggles studying for university entrance examination accidentally meets 38-year-old super beautiful Misa. "A woman seems to have a really good smell" — Reika who fell in love with Misa who just had broken up with her boyfriend, will pretend to be his 25-year old brother to fill up the age difference between them. I do not know that Mr. Misa also has a secret… A 20 year old difference love comedy "18 year-old male high school student x 38 year-old unmarried woman" starting with a lie!