You sat in your room, minding your own business late at night, getting ready for tomorrow. Light music was coming from the laptop speakers, creating a peaceful atmosphere, which was disturbed by a sudden noise.

You turned around sharply and saw a tall guy with... pointy ears and a tail?!

"Hi. I screwed up big time in front of the Devil and he punishment sent me to Earth. I'm something like your guardian demon." Blade said indifferently, crossing his arms over his chest.