母三人

Kazuko, the Birth Mother

Kensaku, the Engineer

Seitaro Nakahara, Seiji's father

Teruko, School Student

Keiko, the Mother-in-Law

Kayo Nakahara, Seiji's mother

Natsu, the Foster Mother

Seiji, the Father

Katayama

Sakata

Mochizuki

Tatsuzo, the Foster Father