Author, I think you finally found a middle ground for your MC. The previous novels with the purely psychopathic mc were well written but this type of character when op is unable to be charismatic. Jaw reminds me a little of Dexter and Joe (You) who despite killing without remorse are charismatic
Hope Itachi can catch up with Kakashi in terms of power. Something like Sanji was the weakest in childhood, but then after a lot of time and adventures he was able to overtake his brothers in strength.
skulputulurubug