Historia
Ju Seo-Cheon, a man who survives the age of war through sheer luck and becomes the elder of the Hwasan faction, only to live a life full of regrets and doubts. As he lies on his death bed, waiting for the inevitable, he is returned to the past... (Source: KakaoPage, translated) Note: Includes three extra chapters.
Sinopsis vía AniList (en inglés).