Aquapyro Engine

"It's moving! It's really moving! This lump of metal is really moving…!"

"Ready the coal, pay attention and don't let the fire burn out…!"

"Excuse me, don't get too close. This boiler will scald you…!"

It was the first sunny day in the middle of the first lunar month after a snowfall. It was getting warmer, but the snow on the ground had yet to thaw completely. Even so, it was already blazingly hot in the Yan Residence's blacksmith workshop. It was noisy and extremely crowded. Everyone had their eyes wide open as they stared at the 'lump of metal' that was slowly coming to life in the courtyard.