Adui
Now everyone can get stronger with skill combinations but Noah benefits the most since others have a harder time getting a fee skills to 100 proficiency while he does it easily comparatively. Also raising skills to higher levels can raise the energy cost that Noah ignores giving another advantage since he can use the new skills as much as the old ones unlike others.
The MC scares me. Every time it is hinted he has company to bed he wakes up and they are gone. You think he has some skeletons in his storage rings? It's nice to have an MC that is neither impotent nor collecting girls like they were pokemon, but the author seems a bit too quick with the 'fade to black' transition and seems intent to keep the story PG-5 or whatever the rating is called. You don't have to go into the dirty details but the lack of description makes you think author is allergic to girls? As soon as they are mentioned we get the fade to black and he wakes up alone again. They get about the same screentime as the 'unimportant villager A' that we passed on the street but didn't really even look properly at and definetley didn't stop and ask for a name. Also all the chicks so far except for one are basically hookers (or should we call them 'entertainers' for the wealthy/powerful?). Fooling around is nice and all but any normal-ish human would look for something more.