母三人

Sakata

Natsu, the Foster Mother

Keiko, the Mother-in-Law

Kazuko, the Birth Mother

Kensaku, the Engineer

Seitaro Nakahara, Seiji's father

Tatsuzo, the Foster Father

Mochizuki

Seiji, the Father

Teruko, School Student

Kayo Nakahara, Seiji's mother

Katayama