1girl, bags under eyes, biting, black hair, black pantyhose, black sailor collar, black serafuku, black skirt, blood, blood from mouth, blue eyes, border, doorway, hair ornament, hairclip, hand up, hime cut, hitodama, loafers, long hair, looking at viewer, messy hair, nail biting, neckerchief, official alternate costume, on floor, outside border, pantyhose, pink blood, pleated skirt, red neckerchief, sailor collar, school uniform, serafuku, shoes, sitting, sketch, skirt, solo, triangular headpiece, virtual youtuber, white border, wooden floor, yokozuwari