— To the Shrek Seven Devils
The Sea Dragon Douluo is a powerfully muscled man with light skin. He wears his mid length blue hair tied away from his face, but loose around his shoulders. A large blue gem is embedded in his chest, his scars are blue, and patches of blue scales cover his wrists and other small areas of skin. He has a large dragon tattoo curling across his entire back.
The Sea Dragon Douluo never wears a shirt, but has blue pants edged in wrought gold.
The Sea Dragon Douluo is brash and assertive, and is often seen with a wide grin. His inner strength and powerful nature have earned him great respect from all those around him. He appears to be a bit of a womanizer, using metaphors about bathing mermaids and beautiful women on occasion.
The Sea Dragon Douluo is a native of Sea God Island. He passed an unprecedented Sixth Level Black Trial, and became a pillar guardian. Of all the Seven Children of the Sea God, he is the most powerful.
The Sea Dragon Douluo first appeared when Ning Rongrong attained the highest Red Level Trial. He later shows up in person at the Seahorse Pillar, along with the other Douluo guardians.
After the first day of the Trial, he chooses Dai Mubai as his successor and student. He continues to watch over the trial takers throughout their challenges.