Prologue: A Heavenly Demonic Disdain

Erica Cassiel had been a Guardian Angel for quite some time now and although her vassal lead a life that was nothing short of perilous, she would barely be able save him on account of him somehow managing to save himself. It was almost infuriating in a way. If only she could save him from his terrible life, but alas, lesser angels like herself were not allowed to go that far. At least until the day Iruma was dragged to the realm of demons and she had no other option than to bend a few rules.

Or

Iruma gets dragged into the Netherworld and his Guardian Angel follows.

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Welcome To Demon School Iruma kun is made by Osamu Nishi, I only own my Ocs and drawings.