-manga Kurasu Zennin De Maou Tensei Chapter: 1-

That afternoon, after school, Haruto stays behind to clean the classroom. As he reaches under a desk to pick up a fallen eraser, a glowing magic circle appears beneath him. Reina steps out from behind the door, her eyes now glowing crimson.

One day, a new transfer student arrives: . She’s beautiful, mysterious, and oddly familiar to Haruto. She’s assigned to sit next to him, and immediately, strange things begin to happen. Reina whispers to him during homeroom, saying, “You don’t remember me, do you? But I remember you… Haruto-sama.” -manga kurasu zennin de maou tensei chapter 1-

“It’s time to go home, Demon Lord,” she says. That afternoon, after school, Haruto stays behind to