Ryuuichi Adamura (阿多村竜一, Adamura Ryuuichi) is the eldest son of the Adamura Family, and the head of the Bunokura Mine.
Ryuuichi was born as the eldest son to Jingorou Adamura in Bunokura. Being born as the eldest son to a wealthy family, He was promised a reasonable inheritance, the family mine. The mine itself somewhat managed the town. Raking in roughly fifteen billion, the mine ranked low nationally, but made the Adamura family royalty in their small town. Frequently referred to as 'big fish in a small pond', the family name was known well within their small town, though the townspeople were aware that their notoriety would not carry on outside of the town.