Gyouu OGUCHIYA can be identified with a real person, one of eighteen rice brokers called 'the eighteen splendid sophisticates and big spender' who vied with one another to show their spirit of 'Iki' by spending a lot of money at the three theaters in Edo and the licensed quarters in Yoshiwara during the Kanen and Horeki eras.
大口屋暁雨は実在が確認できる人物で、寛延から宝暦年間に江戸の江戸三座や吉原で豪遊して粋を競った18人の札差、いわゆる「十八大通」の一人に数えられている。