Shouta hits rock bottom at his high school reunion. While his former classmates flaunt their successful careers, he's stuck as a directionless twenty-five-year-old. An accident at the old school pool changes everything when he wakes up in his childhood body, surrounded by the same girls he just faced, except they're ten years old and have no idea who he really is. What starts as a chance to rewrite his humiliation becomes something stranger. Shouta navigates elementary school dynamics with adult sensibilities, creating absurd situations as he interacts with these younger versions of his tormentors. The comedy comes from the clash between his mature perspective and the innocent world around him, where his weird behavior raises eyebrows and misunderstandings pile up. The story plays with the premise for laughs while keeping things light and ridiculous. It's a goofy time-travel comedy that doesn't take itself seriously, offering viewers quick entertainment that leans into its own absurdity. The three-episode format keeps the concept from overstaying its welcome.