Arc 19The Twin Ocean Ruins
Xia Nan joined the Oath of Vengeance Blades on its voyage to Twin Ocean, where strange shark attacks and a mind-warping Secret Realm led the crew into battle with a powerful Shark Beast. The fight left Aken and Sasha unconscious, with Xia Nan and the remaining fighters facing the monster with their resources nearly spent.
- Xia Nan and Alton boarded the Oath of Vengeance Blades, and Lorraine revealed that the crew was sailing to Twin Ocean to investigate a problem reported by the Islanders of Twin Canyon.
- A storm and thousands of Scorched-Neck Swirltooth Sharks battered the ship, but Hain’s Rapid Vine Shell helped the crew survive and reach Rabbit Island for repairs.
- Lorraine, Hain, and Xia Nan found the Shahua Mermen sacrificing villagers, and Xia Nan helped defeat the priest and elite guards before the crew resumed its voyage.
- At Twin Canyon, Lorraine and the others found deserted homes, strange structures embedded in the cliffs, and signs that the Islanders and mermen had fought one another.
- Shahua Mermen attacked the ship, and Xia Nan plunged into the water to kill the attackers before joining Lorraine’s group to investigate the ruins.
- The group discovered piles of dead mermen and Islanders beside a fused altar and operating room, where a huge Shark Beast with a human body attached emerged from a pool.
- Xia Nan and the squad fought the Shark Beast and targeted its fused human body, which Xia Nan crushed after Hain immobilized it, but the monster kept attacking.
- The Shark Beast struck Aken unconscious and caught Sasha after Xia Nan used Gravity Etching to save him from a fatal blow, leaving four fighters with only two Gravity Etching charges.