Yobidasareta Satsurikusha
呼び出された殺戮者
A man named Tohno Hifumi is summoned to a foreign world to serve as a Hero for a kingdom. Unbeknownst to those who summoned him, he has long controlled his violent tendencies through martial arts. After arriving, he kills several knights and the king, who had orchestrated his abduction. Concerned about further bloodshed, the princess, the only one still thinking clearly, allows him to leave. Hifumi then begins a life of wandering the world, killing anyone who tries to stop him.