Nanashi Yuko,a cat-mage in a world of fantasy,the one who is going to fight the demon lord,but need a partner.i am a cute,soft,weak,happy and cheerful cat-girl,but people don't like me that much.i cant help but blush and nervous whenever i talk to a stranger.i loose all of my strength once i use my ultimate spell "Fallen-Star";A huge star that crack the atmosphere from the above of sky and strike the ground in front of her in several metres.after using the spell my body will lost strength.