Yuriko dreams of taking over the world by creating her own army of zombies, for which she has acquired textbooks on black magic and necromancy on the Internet. It’s all for one single purpose: she doesn't want to go to study every day. The young necromancer had already created one jiangshi, Mao, but she was too lazy. Mao tries to do nothing and constantly follows orders in such a way that it would be better if the master didn't command anything. And instead of taking over the world, they are both loafing around for days on end! Their lazy lifestyle gets disrupted when Yuriko's parents call and promise to deprive her of pocket money if she doesn't start studying properly. The girl is horrified because then she would have to leave the rental apartment and move into a dormitory. Yuriko has one month to solve the problem. To do so, she needs to take over the world or improve her grades at university. Which will she choose?