A Thirty-Year Old's Health and Physical Education

Adachi's 30th birthday as a virgin came with the oddest gift—the ability to read the mind of anyone he touches. Pondering what to do with this mysterious power, he gets a lead when he accidentally reads his colleague Kurosawa's mind. Turns out the handsome hotshot of the sales team has got a thing for him! How will Adachi respond to overhearing these affectionate thoughts?

Yamada, first name withheld, is a 15-year-old girl who has just entered Takizawa High School. Easily considered exceptionally beautiful, she has only one problem with her own body, she thinks her vagina looks weird and is very self-conscious about it. Upon entering high school, her dream was to have casual sex with 100 men but therein lies the problem, she believes an experienced partner will tease her about the way her vagina looks or simply the fact that she's a virgin. She stumbles upon the solution in the form of Kosuda Takashi, a fellow virgin, whom she believes will help ease the transition to more experienced partners. There's only one small problem, Yamada doesn't know anything about sex or the ancient art of seduction, meaning her quest to conquer Kosuda will be a difficult one.

Kotesashi Kouyou possesses outstanding skill as a masseur. He aspires to become a sports doctor and wants to get a scholarship in medical school. Starting spring, he attends the high school attached to Seiwa University, a sports powerhouse. Since his family is not wealthy, he has to work as a hostel manager, where he is also allowed to stay, to pay for his school expenses. There he encounters high school girl athletes with various problems. Kotesashi's job is to take care of them physically and mentally and be the hostel manager.

Shouta, a 25-year-old NEET, is mocked by his former female classmates who’ve all become successes, at their class reunion. A mysterious incident at the school pool throws him back in time and lets him deal with those same classmates back when they were fifth grade girls.