The teenager is a wakeboarding athlete who suffers a severe injury during a national competition, forcing him to bid farewell to the sport and fall into endless confusion. The appearance of a mysterious girl helps him find a new goal in life. Their encounter is like a brilliant firework; he finds happiness in her, and in that happiness, he becomes numb, gradually detaching from the world. His prolonged self-imposed exile is like a derailed train, with destiny taking unexpected turns. One night, an accident once again condemns the teenager to a figurative death sentence.