Hikaru-chan, a beautiful, tiny college student, is enjoying her youth. But when she hears her friends talking about their sweet love lives, she gets impatient and searches for a boyfriend on a dating app. As a result, she ends up getting physical with an uncle who is older than her father! She struggles to meet his naughty demands with her slender, still-developing body. In order to climb the ladder of adulthood, she is trained by this bad uncle to do all kinds of erotic things. She even gets an embarrassing fuck shot, and in no time at all, she's turned into a woman, right?