overlord m, aris (blue archive), doodle sensei (blue archive), kei (blue archive), kei (student) (blue archive), sensei (blue archive), blue archive, absurdres, highres, 2girls, black bow, black hair, black hairband, black vest, blue necktie, book, bow, chair, closed eyes, closed mouth, hair between eyes, hairband, halo, happy, jacket, leaning on person, long hair, multicolored jacket, multiple girls, necktie, red halo, shade, shirt, side ponytail, sleeping, two-tone jacket, upper body, vest, white hair, white jacket, white shirt, whiteboard