Bai Zhu did not rush to touch the iron door of the pump room.
He first had the Mechanical Ants stationed on the perimeter quickly withdraw from the area occupied by the snakes, lest they be crushed by them. At the same time, he noticed a foundation pit beneath the snakes.
Above the pit was a low, thick concrete slab, like a lid.
Bai Zhu's mind raced.
He took several steps back, formed hand seals with both hands, and gathered Reiatsu at his fingertips.
"Bakudo #81: Dankū!"
A massive transparent barrier appeared out of thin air, landing precisely along one side of the foundation pit and sealing off one of the snakes' main escape routes.
The nearest giant snake was immediately startled and slammed its enormous body into it.
Bang!
The muffled impact echoed through the underground space. The snake's head was left slightly dazed, and the scales along half its body pressed tightly against the invisible wall, warping slightly from the pressure. Milluki's feed showed it all with perfect clarity.
It worked!
Without pausing, Bai Zhu cast three more in rapid succession.
Three identical barriers rose one after another. Together with the existing floor and ceiling slab, they formed a temporary transparent cage, sealing the entire foundation pit and the snakes within it.
Completely trapped, the snakes grew restless and repeatedly rammed their bodies into the transparent walls, producing a series of dull thuds.
At that moment, a strange thought suddenly surfaced in Bai Zhu's mind. Surround the target with four walls, then throw an offensive Kidō inside... wasn't that basically Kurohitsugi?
He quickly dismissed the untimely thought. This was not the place to test a new move.
The snakes' commotion drowned out the sounds coming from the pump room.
Bai Zhu moved close to the iron door again