there is a catgirl in my room

(inspired by My Catgirl Maid Thinks She Runs The Place)

In this action/fantasy fairy tale, our heroes, a normal mid-20s male and a mysterious catgirl from another world begin their normal life together in a small apartment in the city.

As time goes on and they start knowing each other better. an enemy threat from another world steps in to send it all crashing down.