Chūji Nakanishi (President of the Nakanishi-gumi construction company)

Chikako Shiga (Photographer)

Jirō Sugi (Civil engineer for Nakanishi-gumi)

Sakamaki (Trade journal reporter)

Gorō Hasegawa (Fūtarō)

Tomioka (Technical official, Kanagawa Prefectural Port Division)

Takamitsu Sesato (President of Teikoku Kin'yū)

Susumu Suda (Fūtarō, a former doctor)

Tatsuhiko Ōe (Nakanishi-gumi accountant; nicknamed "Shibuchin")

Sōichirō Shiga (Branch manager at Kanagawa Bank; Chikako's father)

Kyūsaku Gonda (Fūtarō)

Kanji (Kitchen Staff, Nakanishi-gumi)