A boy fell in love with a girl that kicked/punched him because he apparently hurt one of her friends, but she then finds out her friend was lying and that even tho he's a playboy he would never forget a girl's name. And I think his best friend knows her from the martial arts club.
Sounds like the parents story of this MC guy... it's told in later chapters
http://www.mangago.me/read-manga/koudaike_no_hitobito/
Canaria and Gracie dancing ლ(´ڡ`ლ)