Riku Sato, a shy and kind-hearted high schooler, thought life was tough enough-until his teasing cousin Aiko moves in, turning his quiet world into a whirlwind of chaos. When his knack for helping others accidentally wins him the hearts of bubbly Haruka, shy Mika, and flirtatious Yuna, Riku's stuck in a hilarious harem mess. Between festival dances, flying cookies, and wild rumors of romance with Aiko, he's barely keeping up. Will he sort out his feelings-or just trip over them? A riot of comedy, romance, and awkward ecchi moments awaits!