1boy, 2girls, audience, black_eyes, black_hair, breasts, brown_eyes, comic, concert, grin, guitar, holding, holding_instrument, instrument, kuronami_(lvi), long_sleeves, looking_at_viewer, lvi, medium_breasts, multiple_girls, music, original, panties, pantyshot, playing_instrument, pleated_skirt, sailor_collar, school_uniform, serafuku, skirt, smile, standing, underwear, white_panties