10-nen Buri ni Saikai Shita Kusogaki wa Seijun Bishoujo JK ni Seichoushita Ita
10年ぶりに再会したクソガキは清純美少女JKに成長していた
A 28-year-old man named Isamu Arizuki returns to his hometown after leaving his job at a demanding company in Tokyo. As he begins to settle into a new life, he meets a strikingly beautiful and pure high school girl. She is revealed to be Haruyama Miya, one of the children he used to play with in his youth. Isamu fails to recognize her due to her significant transformation since childhood.