| Family | |||||
| Mate | |||||
| An Unknown One | |||||
| Great-Grandparents | Grandparents | Parents | |||
| Shiro Yamabuki | Riki Fuji | Father (*) | |||
| Great-Uncles / Great-Aunts | Uncles / Aunts | ||||
| 4 Unnamed | Aka* Gin 1 Unnamed | ||||
| Cousins | |||||
| Joe Kinumaru* Weed Yukimura | |||||
| Children | |||||
| Jirōmaru Koyuki Saburōmaru Tarōmaru | |||||
| Second Nephews / Nieces | |||||
| Bellatrix Kōshirō Orion Rigel Sirius 3 Unnamed Shion* 8 Unnamed* | |||||
| Married Relatives | |||||
| Aunt-In-Law | |||||
| Sakura (*) | |||||
| Cousins | |||||
| Billy* Hitomi Koyuki | |||||
| Owner | |||||
| Current Owner | |||||
| Yoshito Sawamura | |||||
*Yuki's mother is unknown; Aka is Yuki's half uncle; Kinumaru is either Yuki's sister or cousin; Shion and the 8 unnamed are either Yuki's first oder second nephews; At least one of Yuki's Aunts-In-Law is unknown; One of Yuki's Cousins (Married Relatives) is unknown; Billy is either Yuki's brother-in-law or cousin (married relatives).