2boys, azathoth_(housamo), bubble, crazy_smile, greyscale, head-mounted_display, hijirino_yuuta, horns, light_blush, looking_at_viewer, male_focus, monochrome, multiple_boys, outstretched_hand, reaching, reaching_towards_viewer, short_hair, sideburns, signature, smile, tentacles, tokyo_afterschool_summoners, tongue, tongue_out, topless_male, upper_body, upside-down