Descent of the Predecessor is a Manga/Manhwa/Manhua in (English/Raw) language, Action series, english chapters have been translated and you can read them here.
The sealed myths and legends have returned to reality. A world where all gods and dragons are liberated, and demons and ghosts have come back. The awakening of humans. The emergence of heroes. A new era of mythology has opened. This story is a narrative about the war and love of the heroes who live in the new era of mythology, or perhaps a new myth.