-nekopoi--shounen-ga-otona-ni-natta-natsu---01-... Online

The story takes place in the summer of 1999 and follows the life of a 14-year-old boy who has just entered his summer vacation. The protagonist, whose name is not explicitly mentioned, finds himself caught up in a series of comedic misadventures and romantic entanglements with his childhood friends and other girls in his neighborhood. As the story progresses, the protagonist navigates his way through adolescence, facing various challenges and struggles that come with growing up.