I like the novel, but it has the same problem that similar novels often face: the main character could theoretically increase his strength at a rapid pace, but he鈥檚 held back by one thing: **morality**.
His grandmother outright offered to help him earn soul points, but he refused simply because she鈥檚 his grandmother. Seriously, that鈥檚 frustrating. Because of his moral compass, he鈥檚 ignoring opportunities that could potentially save his and his family鈥檚 lives. He was told that there are entire organizations stronger than even the empire that has started hunting him, yet he keeps making foolish decisions that could prove fatal.
One such decision is his failure to make a soul contract with the branch of his family he discussed overthrowing the empire with. It鈥檚 foolish鈥攈e鈥檚 been betrayed twice already, but it seems he hasn鈥檛 learned anything from those experiences. Also, this idiot isn鈥檛 even trying to track down his former friend who betrayed and killed him, even though that same friend knows about the artifact. His wife also told him there鈥檚 a high chance that people will hunt him for it. On top of that, Alexander's previous soul specifically asked him to take care of the children he had with that same friend鈥檚 wife, to prevent that friend from killing them too, but he hasn鈥檛 even thought about them yet.
It鈥檚 also frustrating how he went against his entire family over the maid. It鈥檚 irrational to oppose those who are supposed to accept you as their leader for such a reason. If he had simply removed her from her position as a maid and taken her as a concubine, it would have been understandable. However, the way he handled the situation only highlighted his lack of necessity and impulsiveness.
For God鈥檚 sake, he鈥檚 60 years old in Alexander鈥檚 body and also about 30 years old as Jack, meaning he has lived for a total of 90 years. Yet he still doesn鈥檛 demonstrate a satisfactory level of maturity, despite spending many years at war.