|Keizo Oishi - 大石敬三|
|D.O.B.||1st November 1925|
|Family||Grandaughter: Ryoko Nishizawa|
|Appears in||Shenmue I|
Keizo Oishi (Japanese: 大石敬三) is the owner of Bunkado Antiques on Dobuita Street and has over 40 years of experience in the business. Often he has his granddaughter, Ryoko, take care of the shop for him whilst he is away travelling to find new items for his shop. In particular he has a preference for rare art and treasures, having an extensive knowledge in that area. As well as a knowledge in Japanese antiques, he also carries many Chinese artefacts as well, along with old historic books and several items relating to martial arts such as move scrolls. Some time before his death, Iwao Hazuki had Keizo polish and store a Hazuki family heirloom which Ryo would have received on his 18th birthday. This heirloom turned out to be a Sword Handguard which also doubled as part of the key to open the secret entrance in the Hazuki Dojo.