Hidari Jingoro

Hidari Jingorō (or 左甚五郎) is a notable artisan that Hyosuke looks up to. He never appears in the manga, but is only mentioned. We do get to see his mansion from the outside though, as Azumi came to visit Hyosuke once. According to Wikipedia, he was a possibly fictitious Japanese artist, sculptor and carpenter. Although various studies suggest he was active in the early Edo period (around 1596-1644), there are controversies about the historical existence of the person. Jingorō is believed to have created many famous deity sculptures located throughout Japan, and many legends have been told about him.