kyokosama's manga / #Replacement(2)

During training camp, Tsukishima and Kuroo had a sexual encounter, the first one because is madly in love with the second and, the second out of curiosity. Years after, they keep going with this unnamed relationship, without kissing, no waking up together or saying their true feelings until Tsukishima cannot take it any longer and decides to end the relationship.

Hirohira has to go through a possessive and obsessive relationship at such young age after his mother's death. He's raped now and then by his, let's call him, stepfather. He even marks Hirohira as his new female and trains him to feel it just as a female would do.