"Y/N, a growing young man, finds himself entangled in the shadows of a disease that consumes his partner. After losing his beloved, Y/N is cloaked in grief and despair. Despite being surrounded by people busy with their lives, Y/N feels alone until one day, at the station, he spots the cosmic train, the Astral Express. In that moment, Y/N decides to alter his destiny and boards the train for an interstellar journey. The final promise from his partner, urging Y/N to take care of himself and his health, becomes a guiding light in this new journey. In his departure, Y/N discovers a world full of wonders and mysteries. This is a tale of travel, transformation, and newfound hope shaping the everyday life of a young man attempting to change his fate."