2girls, alternate eye color, arms behind back, barefoot, black hair, black serafuku, blue neckerchief, blue sailor collar, blue skirt, blunt bangs, braid, crab, dead animal, dual persona, eel, empty eyes, expressionless, fish, floating hair, footprints, hair over shoulder, hand on own cheek, hand on own face, long hair, looking at viewer, midriff, multiple girls, neckerchief, ocean, ocean bottom, own hands together, pale skin, pleated skirt, red neckerchief, sailor collar, sand, school uniform, serafuku, shadow, shirt, short hair, short sleeves, skeleton, skirt, twin braids, underwater, virtual youtuber, walking, whale, white eyes, white shirt