After Nyuudou withdraws from Hyakki Academy, it’s up to Haruaki and the rest of Class 2-3 to bring him back! Nyuudou’s father refuses to budge, however, so they issue a challenge—if they can infiltrate his home and retrieve Nyuudou, he’ll come back to school and rejoin the class! But Haruaki has no idea who he’s up against, and if he fails, the school will lose a lot more than just one student…