Dyrem
I don't understand how the attributes work. Even if you add the the 0.8 and 0.5 bonuses to the base stats, it still doesn't up; the The remaining 0.1 for INT and 2 for the other two attributes can't be explained. I might have missed something in the previous chapters, but the status page in this chapter isn't indicating what that is. Also, wasn't he supposed to lose everything when he leaves this world(at least as long as he isn't in that world)? I'm afraid you're not explaining this well. I thought the MC was just ignorant(since we're seeing things from his perspective), but now he's talking about accumulating strength; how does that work?
Honestly, I don’t think he has to worry about leveling his system, abilities and skills. He has 30 worlds and 30 heroes to support on what I assume is a daily basis. Not only is he getting experience for his various attributes he is also getting more and more familiar with different scenarios, enriching both his mind and body daily.