inotukuhito, aru (blue archive), haruka (blue archive), kayoko (blue archive), mutsuki (blue archive), problem solver sensei (blue archive), sensei (blue archive), blue archive, highres, 1boy, 4girls, choker, cigarette, closed mouth, garrison cap, glasses, greyscale, greyscale with colored background, hair ornament, hair over one eye, hairclip, hand to own mouth, hat, holding, holding cigarette, hood, hood down, hoodie, horns, jacket, looking at viewer, mole, mole on neck, monochrome, multicolored hair, multiple girls, open mouth, pointy ears, problem solver 68 (blue archive), side ponytail, upper body