Kinda my personal preference but the story might be better if the mc was cold/ruthless or lazy *just trying to live peacefully* because it fit the title more. I first thought it was gonna be like the third party going to either steal power or disrupting the storyline of the world *cold/ruthless/selfish path* or try to stay away from the main character as much as possible and live peacefully *lazy/comedy/acting cool path* While the goal “helping myself by helping other” is good and all but it doesn’t fit the title and thumbnail. Might be better to just call it “Supporting the Main Character” i think there a novel with that name tho. The mysterious past of the MC is also weird, it doesn’t fit the MC. Idk what the past is but it usually have to do with bad thing like being bullied, murdered, ignored, etc... and if it’s any of this then the MC usually would not be the cheerful type. Also since this novel is about going world to world then it’s better not to give too much detailed background info. The fact that he started as a toddler is too boring, take too long and unnecessary Keep in mind, most of these are personal preference so...meh don’t worry about this review if you disagree.

Aight