Where the girls is an ugly ducking but later becomes beautiful
True beauty
My id is gangnam beauty
Mairunovich
Kiss him, not me??? Funny manga/anime
not sure if this really counts as one http://www.mangago.zone/read-manga/beauty_game/
Idk if they are an alpha and omega pair but i do remember that the uke had like a ton of siblings and they met at the library oh and the send made a wedding dress specially for him
http://www.mangago.zone/read-manga/bokura_ga_tsugai_ni_naru_made/