beta
Checked out the raws, so here's some spoilers.
Only 4 years have passed in the other world, vs 15 on earth. ML actually didn't know MC had been killed (I guess getting transported back to earth removed all traces? idk) and assumed he'd just fled. He's apparently been searching for MC this whole time.
MC suspected ML might have been the one who killed him, but nope. ML IS pretty sus, though. He recognizes MC right off the bat and closes the distance between them insanely fast (forcing lots of kisses on him, hugging/holding onto him all the time, a random masturbation session in a closed-off library room with the typical "don't worry, I won't put it in yet but you're just so cute it's hard not to lose control" yaoi line). ML apparently liked MC even back when MC was 13??? There's this dream/flashback where young MC was getting his hair dried just out of the bath (so, nearly naked) and present MC notices that ML was looking at him like a predator with prey... so, um, yeah...