a nice BG story for isekai.
my only complain is,
why he must reincarnated as some princess of fantasy isekai?
i am not againts female main characters, but with backgrounds story like that, he might as well startin as a younger vers of him in isekai...
the moral viewpoint difference is too great between old yakuza and some princess
and that isekai logic shit when someone reincarnated become really strong even tho she has such scrawny muscle volume?
it will be okay if she reincarnated as some bandit daughter or something