Reading the summary made me drop this even i haven't read it or see it
is consensual I promise, I just horrible at explaining things. the uke agreed to it because the seme have a pretty face
I’m not sure since I’ve only read one chapter but I think body lover is what you’re looking for but I don’t what’s its title on mangago.
Thanks, I found it! but in this site is called The Flesh Detective if you want to read it too
I recall that the uke is bigger than the seme; he kills bad guys, and the story is set up in some kind of port for fishing. The seme is a debtor and caught the uke killing the guy who owed money to the seme. Since there is no one to pay the money, he proposed that the uke can pay with his body