The eagerly awaited sequel to the adventures of Siméon, half-vampire, half-human, at the Midnight School!

After foiling a goblin plot, Siméon and his friends hoped to get some rest. Not a chance! Their terrifying classmate, Hanoko, needs their help. Her demon of luck is trying to escape… The demon intends to return to Midnight, where its powers are multiplied! Siméon (a vampire), Eir (a girl werewolf), Joel (a zombie), Prune (an ogress), and Colin (a merman) join forces once again to save the Midnight School.