This sounds interesting, but hope you find it it sounds like love is an illusion at first exept the mother left i think
pretty sure its EGOISM~
http://www.mangago.zone/read-manga/egoism_tim_alchem/?JB13
If your parents still haven't told u today at 3 am that they love u then let me do that for them thankssssლ(´ڡ`ლ)
Thanks to emmalecoral I now know that it is EGOISM
(⌒▽⌒)
So I need help to find a yaoi manga ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄
The Mc is an omega with light hair his mother is dead and his father remarries, that's how he got himself a younger step brother with dark hair
In the first few chapters we found out that Mc's father is trying to set him up with someone's son (a big figure if u want to call it that) but Mc is like "noooo we don't know each other fuck off" so later he gets into heat and the other guy tries to force himself onto Mc but Mc gets saved by the little brother....