Under the command of Bai E, eight Mechas contracted their formation like a steel porcupine, while fending off the Bug Race's nearly frenzied attacks, they struggled to continue diving into the depths of the "CT-7" trench.
Along the way, they repelled several waves of assaults composed of new deep-sea Bug Race units, but the energy and ammunition of the Mechas were rapidly depleting.
Fortunately, they finally broke through heavy obstacles and approached the core area of the trench.
The terrain here was even more treacherous, with massive submarine rifts resembling the planet's ferocious scars, steep rocky walls on both sides, and the bottomless valley floor covered with endless Bug Race biological tissue glowing dark red or ghostly green, winding downwards like blood vessels and nerves.
From the depths of the valley, a deep rumbling resonated like the beating of a gigantic heart, along with a soul-shuddering, massive Spiritual Energy pressure.
