Just realized the way they worded his system. "Cant learn the master skills of other systems" does that mean he'll unlock master skills of his own system? maybe a copy skill where he can use any master level skill once then has to relearn it or something.
I got no problem with fast paced story, As long he has a good reason to do it. A dream eh? Well I seen a lot anime that chase unreachable dream so no problemo.
This is the first story here that I've read that hasn't attempted to make my mind explode due to poor grammar. On top of that, it's really good, easy to read and follow, and enjoyable, too.