Drip Your Heart
student fuck his teacher that is succubus
Bokura No Mitsudomoe Sensou
1st friends that have something going on but one runs away and the other chase him so they have sex and dont put a name for their relationship 2nd 1 guy is fiends with 2 and 3 then comes 4 guy and 1 prrotects 2 from 4 and come with a plan to "ruin" 4 to show that he is bad guy but it truns to have treesome betwwen 1 3 and 4 3rd guy 1 and 3 have sex and do it all the time after confession of 3 4th some prince from another country have sex with teacher (also u can see guy 1 and 3 constantly fucking in background lol)
Namida Hanamizu Gusyogusyo Danshi
student bullies teacher to see him cry and blackmail him - sex for student going to collage
Hatsukoi no Tonari