1girl, arms_behind_back, bleeding, blood, blood_on_arm, blood_on_leg, crossed_arms, cuts, facing_away, feet_out_of_frame, fingernails, from_behind, holding, holding_knife, holding_ribbon, injury, knife, long_fingernails, medium_hair, monochrome, original, pleated_skirt, ribbon, sailor_collar, saitou_nekoichi, school_uniform, self-harm, self-harm_scar, serafuku, short_hair, short_sleeves, skirt, solo, spot_color, white_background, wrist_cutting