白若瓏

Bai Ruolong is a member of the Wandering Sea, being part of the Guénon workshop. He’s the disciple of Ziz and was Ergo's best friend before Ergo lost his memories.
Ruo was created as a spare for Ziz's plans in case something happened to Ergo. Like how Ergo has three Divine Spirits inside of him, Bai Ruolong has the Divine Beast Typhon within him.