watanabe akio, ai (popotan), mai (popotan), mii (popotan), popotan, 00s, 2003, 3girls, ahoge, album cover, badge, bike shorts, black hair, blue eyes, blush, blush stickers, book, bun cover, button badge, clothes around waist, cover, fang, glasses, hand on own ear, hat, headphones, jacket, jacket around waist, jewelry, long hair, multiple girls, necklace, open mouth, pen, pointing, purple hair, red hair, short hair, sweatdrop, very long hair, window, wings