Uchuu no Mozuku
Tsunaide! Shokushu-kun!
Perfect Planet
Vol. 2 extra First three chapters are full of rape, tentacles, gang rape, & more! Buuutt since the ML is not one of them I don't mind it as much ig. And they managed to escape to an uninhabited planet...that is until the last panel of ch.4 with the hand out of the crashed spaceship... Sighhh i wish the rest of this just consisted of their life on the planet with no else to bother them. But I guess that's too much to ask for huh. Don't let any of this take away from the fact that it's incredibly fucked. - Skimmed the first two pages or so because I didn't think this was gonna be any good lol. This is what I got: Dude on spaceship gets raped by tentacles and gains immortality because of a virus transmitted by the tentacles or something. Spaceship people rape him to get some of that sweet sweet immortality. The only dude that had a moral compass rescues the dude and brings him to an uninhabited planet.
Poji