The ten kings of the underworld judge the souls of the dead based on their deeds in life, but due to an incident, the leader of the ten kings, King Enma, accidentally let the souls of 108 violent criminals escape! King Shinkou comes to the human world to recapture the escaped souls, and runs into a young man named Onomura being chased by one...? A non-stop hell comedy by Tanaka Mai, author and artist of "A Terrified Teacher at Ghoul School!"

As the cherry blossoms fall, a new school year kicks off at Hyakki Academy—a school attracting youkai from all over Japan! Unfortunately, the first years are far from model students, especially the troublemaking idiot duo, Mamekichi Maizuka (a mame-danuki) and Tamao Akisame (a nekomata). It’s time for the lovable but rambunctious animal youkai to steal the spotlight in this spinoff comedy, set a year before the events of "A Terrified Teacher at Ghoul School!" (Source: Manga UP! Global) Serialized on Pixiv Comic.