.... why the dragon? he could have just teleported to one of his shadows that protected her sister.. and why just bring out the ant general? he could have left the orc magic user to just incase some shit happens. and the ant general needed more help. cause the orc magic user could literally buff...
its an anime thats full filling a fantasy. no need to get too into it. as much as I would rather have the MC make better guns, its just that the mangaka likes those guns more, and so ofcourse he'll make them "perfect" in his manga.
imagine if this was a dark manga, and the MC just used his XP share to steal XP from every person he encounters. and he just keeps growing and growing while doing nothing at all.
the hero was a perv and had probably wanted a life with frieren, but deep inside he had known that frieren had other plans. and its why he never got married. hoping that one day she would have come back and told her.