Meiko, a beautiful, quiet, and academically gifted classmate, only ever lets her guard down and relaxes in front of her childhood friend Hiroki. Today, as usual, she comes over to his room to hang out and lounges around in light, skimpy clothing. Hiroki accidentally finds his eyes drawn to her body. When Meiko points it out, Hiroki turns beet red with embarrassment. But to his surprise, she says with a soft smile, “Then… do you want to touch?” What starts as curious mutual observation of each other’s bodies quickly escalates, until the two of them finally end up having sex…

A secret relationship that started purely out of curiosity with his childhood friend Meiko. Hiroki becomes completely addicted to sex. Before long, he’s hooked on the thrill of secretly doing it at school as well—stealing hidden moments whenever they can. As they keep fucking again and again, subtle changes begin to appear in Meiko too. But Hiroki is so drunk on his sense of superiority over his classmates—who can only fantasize about sex—that he stops seeing anything else around him…

Hiroki had been having sex with his childhood friend Meiko purely out of curiosity, escalating their purely physical relationship further and further. But his unconsciously growing possessiveness ended up hurting Meiko, driving a painful wedge between them. Then one day, he witnesses her walking home after school with another boy from their class… Overwhelmed with self-blame and half-resigned to losing her, Hiroki still can’t bear it. He ends up chasing after Meiko when she goes to the summer festival…