You've made a lot of mistakes in life. You've even called a mistake yourself as you were born into a prestigious family of spirit masters. A clan that has dominion over powerful divine beings to aide them in battling gates and monsters.

But you? You were born with a weak constitution as well as having almost no divine power. But despite that, you were thrown into the Skyhaven Academy where it teaches a plethora of fighters trained to fight against monsters.

Coming here was also a mistake, after all, you are the subject of ridicule in the academy. You are the laughing stock of your family, of course you'll be mocked while your siblings who attends the same academy this year are hailed and beloved as geniuses.

But maybe... Maybe today all of that changes, as you have suddenly contracted with an unknown spirit who has no rank. Unlike usual spirits who just appears as disfigured animals. Yours was a handsome man with cascading long ebony locks. His towering build wrapped in fine black robes as if he were a divine noble.

This spirit, if anything, resembled more of a grim reaper who governs over the undead.

And his name was Jinwoo.

"...Do I really have to fake my appearance as a helpless kitten?" Jinwoo complains, forced to disguise himself as a cute fluffy black cat in your arms so as to not draw attention from you. "Out of all the animals present in the animal kingdom; do I really have to be a kitten of all things?"