In the Global Ocean Survival Game, Ezra Russell and his companions set sail for the Sea of Relics. Ezra breaks Leviathan Smith’s seal and rescues Medusa Wilson. Pursued by Michael Evans's fleet, he salvages an anti-missile system, a scroll of the Will of the Sword, and trident fragments. After mastering the Will of the Sword, Ezra slays Leviathan Smith. Their warship transforms into the Ultimate Marine Mobile Fortress. When spirits ambush them in the Sea of Elysium, Ezra awakens the Power of the Sword Soul. He unleashes Spirit-Breaking Slash and steers toward the unknown depths.