1boy, 1girl, alternate_costume, aru_(blue_archive), blue_archive, blush, borrowed_clothes, cropped_torso, demon_horns, flying_sweatdrops, greyscale, hair_over_one_eye, horns, inotukuhito, long_bangs, looking_at_another, looking_down, monochrome, no_pants, one_eye_covered, oversized_clothes, oversized_shirt, semi-rimless_eyewear, sensei_(blue_archive), shirt, simple_background, sleeves_past_wrists, speech_bubble, sweatdrop, under-rim_eyewear, white_background