Steel, Guns, and the Industrial Party in Another World - Chapter 326:

... summoned alchemists, including Wells, to his castle. It was Wells’ first time meeting the highest ruler of the land he lived on.

The alchemists were surprised to find that the lord appeared to be just of age, around fifteen or sixteen years old.

Having lived in Lakeheart Town for so long, they had certainly heard of Count Paul Grayman’s various impressive achievements.

Militarily, he had trained his army to eradicate pirates that had plagued the Northwest Bay for years im ...