Fourteen-year-old Suzuki Iruma has just been abandoned and sold to a demon by his irresponsible parents! Surprisingly, the next thing he knows he's living with... more>> the demon who has adopted him as his new grandson, and has been transferred into a school in the demon world where his new "demon" grandfather works as the principal. Thus begins the cowardly Iruma-kun's extraordinary school life among the otherworldly as he faces his true self, takes on challenges, and rises to become someone great. <<less

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Spin-off from the main series Mairimashita! Iruma-kun about Kalego's school days at Babyls Demon School.

Tanaka-san is a legendary hotel man (concierge), and after his death, he became a legend in the underworld. In the underworld, Mei works at the... more>> dilapidated Hotel Helheim. It was once a glorious hotel, and one where Mei has many fond memories. One day, Tanaka-san appears, ready to restore the Hotel Helheim to its former success. Mei will become the famous Tanaka-san's assistant, as he works to make Hotel Helheim a top-class underworld hotel! [tethysdust] <<less

Arcaspia, the "world of creatures," is home to all manner of mythical and fantastic beings - including the undead. To maintain order in Arcaspia and... more>> enforce laws upon these dangerous individuals, the Dead an Dead organization was formed. Notorious Dead an Dead agent number 666 Nico Alsbarn (colloquially known as "Legs Russo" for his perpetually blood-stained legs) takes on an undead invasion in this oneshot by Osamu Nishi! <<less