Su Yuan, a poor student, in order to not place any additional burdens on his family, accidentally got himself enrolled into a college named Ogus Academy. But soon he discovered that this institution was actually established for the protection of monsters, and for the physically weaker humans, in order to protect their own lives, they had to form partnerships—called pal, with those monsters. As a result of his unique scent, many were drawn towards him in hopes of becoming his pal, and at same time, he was also subjected to various attacks. That was, at least, until the day he rescued a fox covered in blood, only to then discover....