2girls, 4koma, arm_up, artist_self-insert, blue_eyes, blue_hair, closed_eyes, comic, computer, detached_sleeves, gradient, gradient_background, hair_tubes, heart, heterochromia, holding, holding_microphone, juliet_sleeves, laptop, long_hair, long_sleeves, microphone, multiple_girls, music, nontraditional_miko, open_mouth, puffy_sleeves, red_eyes, short_hair, singing, smile, spoken_heart, sweatdrop, vest, wide_sleeves, wiping_forehead