Hwee-Kyung wasn’t sure how the power of water made the mud soldiers move, either.

‘I understand up to that cylindrical device. As water falls down, each bucket gets filled with water, and as one bucket gets heavier, it tilts down and causes the device to rotate. As the device rotates, the axis of the device rotates, and as the axis rotates, those parts would rotate….’

Hwee-Kyung went through each part of the device and stopped when she came to the point she couldn’t understand.

‘That’s fine. Just figure out what’s possible.’

Then Sairan said, “So you’re saying they use the power of water to move?”

“Yea.”

“More specifically, how?”

Hwee-Kyung pointed to one side of the Mud Soldier Room.

“There is enough water coming from the source. That’s why they made a hole in the wall as a waterway. Given this place is pretty high up in Automation, the strength of the water flowing down can be utilized, making it viable to install many of those wide cylindrical devices.”

“Hm, then what?”

“We could install those devices on each floor. Look at the intersections of the axes when they turn. They spin as if someone is turning them by hand, when in reality, it’s just water.”

“...So...