Yasoukyoku

Shou is the bogus son who is mistreated simply by his family, while Takashi is clearly the preferred son. Shou is being “used” by Takashi, but Takashi’s fiance has fallen with regard to Shou. Feels like a shoujo manga, but with a little bit of yaoi mixed in.There is a follow up to this manga called :Zensoukyokuit has not been scanlated yet.