Saitou  

, 斎藤

At Chief Kakuzawas island facility, there was a scientist named Saito who worked in her late twenties. Her job involved research on Mariko, which she conducted through loudspeakers. During these interactions, Mariko referred to Saito as "Mommy." Additionally, Saito took secret measures to erase any parental emotions that Mariko might have towards her birth parents, Kurama and Hiromi.