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
uke x everybody
Everybody's raping the uke, there is no happiness in this world. There is one dude that was very nice, but they broke him too.
Senpai x kouhai
Senpai has this power to see the red string of fate. And his string connects to his kouhai, but he wants to cut the string. A really beautiful love story.
Spin off: Kanawanu Koi no Musubikata
brothers
Younger brother always takes care of the older one. When the older one needs to move out for university, younger brother decides to tie him up and do... stuff.
Not Equal