The Emperor’s Sword is a Manga/Manhwa/Manhua in (English/Raw) language, Action series, english chapters have been translated and you can read them here. You are reading chapters on site. The Summary is

Zhu Yunwen, who barely survived the Jingnan campaign, received the souls of two of the world’s strongest martial artists, the First Heavenly Demon of the Demonic Cult and Huineng, the Sixth Patriarch of the Shaolin Temple, in his body, and was reborn as Heavenly Destroyer. This is the story of the Heavenly Destroyer’s journey to become an absolute existence begins!