Paired with beautiful, outgoing gyaru Watanabe Akari for his high school marriage practical course, introverted Yakuin Jiro agrees to act the perfect couple so that they can score high enough to switch partners and be placed with their crushes.

Akari’s friends tease her, saying she’s been staring at Jiro a lot lately—an idea which she quickly denies. Meanwhile, Jiro and Shiori find themselves alone together after school, and Shiori can’t help remembering some bold advice from a friend.

Jiro and Kamo get a live-in summer job at a seaside cafe, but Jiro isn’t excited about it until he finds out that Shiori will be there too. When he gets home, Akari is waiting for him wearing a daring swimsuit. Together, they make a shocking discovery!