beta
father x son
Son accidentally time travels back to the past, where he meets his father and they fall for each other. Very painful when he comes back to present.
My favorite manga of all time
Side story: Bi no Kyoujin: X Side
knights x yaoi demon
A demon brainwashed knights to do smut stuff. And a lot if it.
vampire x his adoptive father
Dude adopted a vampire kid and vampire fell in love with him. A very nice story.
Omega was abondoned by his rich alpha parents, was given to beasts for reproduction. A nice love story, as long as you don't mind beast dick
Spin-off: Remnant: Kemonohito Omegaverse
Not Equal