bo illustration, hiiragi kagami, hiiragi tsukasa, lucky star, commentary, highres, untranslatable commentary, 2girls, black ribbon, blush, closed mouth, cropped legs, crossed arms, dress, hair ribbon, hand up, happy birthday, long hair, looking at viewer, multiple girls, one-piece swimsuit, open mouth, ponytail, purple eyes, purple hair, red one-piece swimsuit, ribbon, simple background, star (symbol), swimsuit, very long hair, white background, yellow ribbon