The Middle Ages where zombies are rampant, the city where useless people are slaves and prostitutes, or the game world where everyone cheats
In countless different worlds across the universe, no one knows the name of a missionary
"Lord, please tell me what makes me invincible!"
"It's very simple -
Attack the old man, hit the temple with a sharp weapon and then hit the head with a sharp weapon
Attack a man, hit him on the temple with a sharp weapon and then hit him on the head
Attacking a woman, hitting her temple with a sharp weapon and then hitting her head
Attack the superior, hit the temple with a sharp weapon and then hit the head with a sharp weapon
Attacking children, hitting the temple with a sharp weapon and then hitting the head."