There are those 30 Murphy Stones in the "Undersea Maze" waiting for him to collect.
And this purple accessory "Gilded Tail Spray" just happens to fit Er Dan's train perfectly, aligning with his plans!
Similar to "Nitrogen Tail Spray", it's used to accelerate the train, but the accessory effect also has another benefit; the fewer carriages and lighter the weight, the faster the speed increases, perfectly fitting his idea of a small and exquisite exploration train.
He actually treats Er Dan somewhat like a "Destroyer" in a carrier group.
In his vision.
The future Constant Star Train will be the main, with many such subsidiary trains executing his commands. At the start phase, all his tasks are basically single-threaded, but with the development of his power, surely in the future, multi-threaded progress will be required, with numerous tasks for him to handle simultaneously.
If he keeps controlling the Constant Star Train by himself every time, he'll be overwhelmed to death.
