Hikaru Nightray, is a unique yet mysterious teacher in Babyls Demon School. When honor student Iruma enrolls, he already discovered Iruma's big secret.
"Neh, Iruma-kun~! You're a human aren't you."
"H-How did you find out?! A-Are you gonna eat me??!!"
"Why would I eat one of my kind? That's cannibalism."
"...HUH??!!"
*Spoilers* There's some spoilers in the manga so I'm warning you for the first three chapters.