Soo-hyun, an isolated student who believes no one understands him, attempts to end his life but awakens to find three ghosts who have wandered the school for 15 years. They ask him to lend them his body so they can fulfill their final wishes. The ghosts take him to a failing district youth basketball team coached by Jung-woo, whose squad is about to be shut down. As Soo-hyun trains with the team and the ghosts help him play, he begins to confront the value of life, friendship, and second chances. The musical mixes comedy, spectral fantasy, and sports-movie energy with an emotional message about belonging.