yes exactly bc it'd be weird to me if mc becomes the heir, cause like he instantly woke up, successfully did his first transaction and everything and I was like? Why did you not do that BEFORE you die if it was that easy? If you're such a genius trader how did you get scammed lol? I love him but I don't think he's suited to be the heir if he already failed once, I hope he finds a right path for himself.
The reason for his downfall was because he spent all of his wealth into objects obtained through interdimensional trading. The object that allowed him to turn back in time (I believe it was a sword) was just one of the many objects he got scammed on, not the only one. He didn’t get scammed only once, but multiple times and with different objects. Had he just bought the sword only, his downfall wouldn’t have happened. His downfall was also caused by his archenemy, whose name I don’t remember. I also don’t see what you mean by “You don’t learn things as I go, you learn them right away” because this is exactly my point. He went from a 100% failed transaction rate to a 100% successful transaction rate. It’s like being dirt poor and then being a billionaire all of a sudden. If he learned this as he went the successful transaction rate would have went up little by little, showing him learning from his mistakes. The fact that it straight up went to 100% shows that he learned this in one go. And if he learned this in one go, showing it wasn’t that hard, why the fuck did he not do this BEFORE he died? What’s not normal is waking up and becoming a genius all of a sudden. I think that’s just a plothole, not saying it’s ruining the story or anything.

Lol I was kinda waiting for this moment because throughout the chapters I kept feeling sad that the big sister can’t be the heir cause she’s a woman, even though she probably was the one who worked her ass off the most? I hope that her wearing a knight armor was a future version of herself. I feel like a huge burden left my shoulders rn