Ore ni Trauma wo Ataeta Joshitachi ga Chirachira Mite Kuru kedo, Zannen desu ga Teokure desu

Yukitoshi Kokonoe has always had bad luck with women. His childhood friend rejects him when he confesses, his sister hates him, and his mother shuns him. When Yukito enters high school, all the girls who traumatized him in the past seem to warm up to him.......? This is the start of a romantic comedy about adolescent misunderstandings that begins when it is already too late!

(Source: Comic Gardo, translated)