@Degernase:
For the sake of storytelling it seems like a cheap plot device to make up an excuse for why he had to work together with Claude.
It doesn't matter how strong or clever the brother is. With his attitude, being poor is an inevitability.
No disrespect, but "a cheap plot device" is more criticism for those who have read too much manga and seen too many similarities. That's what it feels like to me. It's the curse of reading too many books, playing too many games, watching too many movies, etc. The magic is gone and all you see are similarities and nothing new. Instead of noticing what's similar, I suggest (key words meaning NOT TELLING YOU WHAT TO DO. Can't tell you how many times people thought otherwise. -_-) that you try to re (or re-read) a manga as if it WAS new; forget the rest you read and try to read it with new eyes. Easier said than done, I know, but it makes reading more enjoyable again, imo
He was supposed to have been super autistic about focusing on red magic in his past life but this should be void or maybe spirit magic.
False. Once he realized his Red Magic wasn't that strong, he decided to use the tools of his past life to get stronger and learn the other magics which he had no interest in in the past life. He's not trying to make the same mistake twice (that really WOULD make him autistic. And I can say that because I have a brother who is. I got stories.). My theory, however, is that while he as the POTENTIAL to bend space and time to his will, he didn't purely because of lack of interest back then except for those that amplified his Red magic (in this case just that one is what made the Crimson Blade). Now that he's focusing on all branches (still continuing my theory), he's going to learn more, but if it's anything like RPGs of the past, it's either gonna consume a hell of a lot of MP, your lifespan, or the spells are not gonna be as fantastic as we think (Hasten, temporary time freeze on one enemy not an area, etc.). Space-Time/Void magic is typically a "forbidden" art so it's not really focused much until things get serious (like final boss serious).