Stranger's Handbook (Novel)

The main character is suddenly summoned to another world.. and the one who shows up next is a malicious and scheming noble.. obey or die. I'll try to rise in this world and live on by any means! It's the story of such a hero. Comedy and serious scenes? I'm the type that won't let his guard down even when my magical powers are at a cheat level.. I take my medicine while scheming wickedly. Was I only scared of my surroundings in the beginning? Well, I'll do my best to become an indispensable hero!.