Baektamujeok
Yeon Hwicheon from the Yeon Sect is deceived by the Dam Sect, who are after his sect's divine treasures, into an arranged marriage. Despite the unsightly scar on his face, he meets his kind-hearted wife, Dam Hwayeon, and they live a trouble-free life.
However, the Dam Sect, revealing their true intentions, causing the downfall of the Yeon Sect. He barely escapes and finds refuge in a cave. Here, he has a fateful encounter, through which he finds advanced martial arts skills.
Yeon Hwicheon finds himself regressing back to the moment right after his marriage. Yeon Hwicheon and the now stronger Yeon Sect quickly become the targets of the martial arts world, and Hwicheon, already aware of this, further elevates the martial arts of his sect and boldly throws down a challenge to the entire martial arts community under his name.
(Source: KakaoPage, translated)