A Life or Death Struggle! The Battle at the Build Base

Overview

The Build Base location has been discovered by Himika. Hiroshi, tired of repeated interventions, is irritated by Uzuki, and the ship on which Don and the others are on is swallowed by the vortex that suddenly occurred. Hiroshi that went to help encountered a mysterious object at the bottom of the lake. Suddenly, he wonder if he really belongs to humans.