1boy antenna_hair arm_at_side bare_arms bare_shoulders child chromatic_aberration collarbone commentary_request gradient_background hair_behind_ear hair_between_eyes hand_up holding holding_knife knife looking_at_viewer male_focus monochrome official_alternate_eye_color omori omori_(omori) short_hair signature simple_background solo tank_top teeth upper_body upper_teeth_only v-shaped_eyebrows wide-eyed yuusuke-kun