1girl, artist_name, blood, blurry, blurry_background, breasts, collarbone, depth_of_field, dress, grey_sweater, holding, holding_knife, hoshino_ai_(oshi_no_ko), knife, light_particles, long_hair, long_sleeves, mareru, murder, open_mouth, oshi_no_ko, parted_lips, pinafore_dress, purple_eyes, purple_hair, red_ribbon, ribbon, sidelocks, signature, skirt, sleeveless, sleeveless_dress, small_breasts, stab, star-shaped_pupils, star_(symbol), sweater, symbol-shaped_pupils, white_dress, white_skirt