"I swear by the name of Animusphere: Human Order will endure!"
"Heretic Gods? The Age of Gods is over. You trash, get back to your myths! Don't even think about rampaging across human lands again!"
"Absolute Evil? For the continuation of human history, I will defeat you here!"
"There's nothing five Fireballs can't handle. If there is, then use five Flame Bursts."
"Heh, if you can't beat your enemies into the ground in melee, how can you call yourself a mage?"
"The Chaldea, the Transdimensional Human Order Preservation Agency, is officially established. Giving everything to preserve Human Order is our mission!"
This is the story of an 'ordinary' Chaldea deputy director who is, in fact, anything but ordinary, as he preserves Human Order across countless worlds. Note: This is an invincible protagonist story.
This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.
Will the protagonist always be in a sane, impersonal state? If this is the case, your book can really only be at an inferior level.