Keiko Arima, YU-NO Wiki

Keiko Arima (有馬 恵子, Arima Keiko) is the wife of Kodai Arima and the biological mother of Takuya Arima. The name Keiko means "favor, benefit" (恵) (kei) and "child" (子) (ko). Keiko's surname Arima means "exist" (有) (ari) and "horse" (馬) (ma). Keiko makes only one in person appearance in the series outside of the final episode. She briefly appears when Takuya is trapped in the cave together with Mio.

Takarazuka Wiki

Amanda (YU-NO) The Infinite Zenith

Keiko Arima Voice - YU-NO: A Girl Who Chants Love at the Bound of

Takuya Arima

Takuya Arima

Keiko ARIMA Anime-Planet

Waifupedia - NS-10-M02-9 Ui Hirasawa

Anime Collaborations, The Infinite Zenith

Arihiko Inui TYPE-MOON+BreezeWiki

Saka no Ue no Kumo (TV series) - Wikiwand

Takuya Arima, Heroes Wiki

Takuya Arima, Wiki

Stardust Crusaders [Journey] - JoJo's Bizarre Encyclopedia

Keiko Arima, YU-NO Wiki

Stardust Crusaders [Departure] - JoJo Wiki