Since childhood, 'Gyuho' has harbored resentment towards his family. Currently, he lives apart from them. One day, Gyuho embarks on a solo train journey, determined to forge a good relationship with his estranged family. However, an unexpected accident brings him to the brink of death. On this threshold of death, he meets 'Yugyeong', a university student, and they share many conversations as he accompanies her to her next destination. Will Gyuho be able to complete his journey safely and return to his family?