=Kind of hard to be hated when you're just a simple old man making weapons and tools all day.=
A vast majority of the Kaijin Lords that had existed prior to Zhen Liu were known to be, in a word, natural disasters in human form.
The Devout Heretic was thought to be a revolutionary hero when he stopped the Omninarii Empire's attempt to take over the world, but he was also painted as a genocidal maniac when he blew up their home island…and most of the populace.
The Invulnerable Storm Queen was both reviled and respected by the people of the Pearl Scale Empire, respected for her act of saving slaves but reviled for having ended entire bloodlines during her crusade.
The Damned Drunkard was a name whispered in shadows when one thought of the undead, although he himself was a bit of a lazy, drunken goofball of a ghost.