All of Ido Masayoshi's Novels

Summoned Slaughterer
Author:Ido Masayoshi
    Touno Hifumi was summoned to another world to be a Hero for a kingdom. Unknown to the summoners, he’s a kill-happy person who had restrained his killer instincts with martial arts. Upon arrival he slaughtered various knights and the mastermind of the event, the King. Unwilling to oppose this strong killer, the Princess let him go free. Thus started the fun life of traveling the world, and unrestrainedly killing any who attempt to kill him.But first, lets purchase a pair of female slaves.