why would he absorb the clones if it speeds up the recovery while he levels up just as fast anyway. basically he's giving himself less time to progress.

is it coz they're dead?

Kellian about to die because of his own fault. He could've simply spoken with respect and told him to wait till Lucifer arrived. Or even better, leave before anything happens.

In what world would delivery be able to know on that many floors without being kicked out by police. Tbh, they know they'll get caught, so why not beat them up before they even find the room. That way the villains won't know where exactly to find them.

I've mentioned it previously, but think critically.. IF you played a game, let's say League of Legends, and it affected you IRL. What could you even do? Would you really assume that it's some secret training ground made by Aliens... It's easy to guess things when you've been reading Light Novels forever.

matchmaking rank, basically the score that ranks him against his opponents. for instance, since he's on a big winning streak, his MMR is higher than his actual rank. That makes it so he plays people stronger than him. The idea is that when he starts losing his MMR will become equal to his rank.