Leviathan Zero: Return of the Drowned Kin

Rowan Kane works as a mechanic at Arden Port under the name Nolan. Five years ago he was the youngest fleet commander of the Oceanic Alliance and the only pilot of Leviathan Zero. During the Black Tide the retreat orders were tampered with, his fleet and his family were killed, four coastal cities were destroyed, and he was named the Drowned Traitor for it. Elara Arden pulled him out and he has stayed hidden since. The Vane Consortium wants the port and forces Elara into a rigged Titan duel. Rowan takes the field as the Mech King, and Leviathan Zero wakes at the bottom of the ocean and calls him back. With Elara as co-pilot he reaches 98% sync and uncovers that kaiju are being released deliberately so the Consortium can corner monster-core energy. His sister Mia, who he believed dead, has been made into the biological core of the Abyss Gate.