Su Yuan, a poor student, is accidentally admitted to Ogus Academy in order to release burden for the family. However, it is found that the college is set up to protect the half-demons. The weak human beings must team with a half-demon pal (partner) for saving their lives. Su Yuan attracts many pal seekers due to his special smell and suffers various attacks at the same time. Until the day he saved a bloody fox, he found out...