The Song of the World Serpents (Part 3)

...

Shin could hear the wails of anguish and resentment from the souls of the dead World Serpents right after his feet touched the surface of the altar.

They were telling him to revenge their deaths and punish the traitor of the sea, who had killed them and turned their bodies into nourishment for his demonic powers.

Right after Shin agreed, these souls climbed toward his body leaving a portion of their power left in them along with the unique abilities that they possessed when they were still alive.

At the same time, their respective World Serpent Fangs also fused with his ice sword, changing its appearance. The originally brilliant white blade was dyed by bloody color, seemingly symbolizing their resentment toward the great enemy.