Summoned as a Hero, but I Chose to Be a NEET – I Got a Defense Cheat, but It’s Completely Useless in Combat!

A Template Story That’s Not Quite a Template One day… I died. Just like that. And then, thanks to some mysterious being, I got summoned to another world. I received a cheat ability, but it was something trivial—an absolute immunity to injuries and illnesses. No attack power whatsoever. I can’t even defeat a single slime. How the hell am I supposed to survive in a brutal world like this?! King: “Oh brave hero, what is thy name?” Protagonist: “Wait, shouldn’t you introduce yourself first before asking for my name?” Attendant: “You dare speak so rudely to His Majesty?!” King: “Hohohoho! Quite the lively young man. …Kill him.” Guards: “As you command!” This is a comedy novel about a co...