Midorikawa Rizu

Midorikawa Rizu/Elizabeth "Betty" Greenway (緑川リズ) is the mother of Midorikawa Ryuuji and Sesshoumaru. She is a chef along with her husband all over Japan.

Family

 * Son: Midorikawa Ryuuji
 * Son: Midorikawa Sesshoumaru
 * Adopted son: Broflovski Kairu
 * Husband: Midorikawa Joji
 * Daughter-in-law: Zaizen Touko
 * Grandson: Midorikawa Ryuuzaki

Story
She lets Shirou stay in her house for a while he recovers, as the Saginumas cannot fit anyone else in their house, despite Iesutasuke being a doctor.

She is very worried for her sons in Book 3 when they are stuck in the arctic and Kairu got hypothermia while Ryuuji broke his ankle.

Rizu is the only mother to have a job except Genda Nakusa.