The "Empress of Volleyball," Kim Yeon Koung, returns as a rookie coach to establish the Wonder Dogs, a new team formed with the underdogs of the volleyball world. Gathering hidden gems, including released pros, aspiring semi-pros, and returning veterans, she takes on the challenge of rewriting Korean volleyball history. Their sole objective is to be recognized as the eighth team in the professional league. However, facing the grim reality that defeat could mean disbandment, Coach Kim must prove their survival with every single victory. With Coach Kim's relentless pursuit of detailed, world-class strategic volleyball and the passionate support of team manager Boo Seung Kwan of SEVENTEEN, can the Wonder Dogs chart a miraculous journey from underdogs to wonders?