The Testament of Sister New Devil

When high schooler Basara Toujou finds himself sharing his home with two stunning girls, Maria and Mio, his ordinary life takes a wild turn. Turns out, Maria is a mischievous succubus, and Mio is destined to become a powerful Demon Lord. But wait, Basara’s got a secret of his own—he’s the last of a long line of demon-slaying heroes! Things get even crazier when the girls trap him in a master-servant deal, flipping the script on their relationship. With a demon-fighting hero, a sultry succubus, and a future Demon Lord all under one roof, you just know chaos—and epic adventures—are on the horizon!