What is real identity of Kagari? Who is Kagari Shiina? What is her real identity? She looked so much similar to Kurisu Makise. Is she her daughter? Steins;Gate 0 ended without revealing her true identity, so I am curious.
Kagari is Mayuri's adopted daughter from 2036, in the Beta World Line (Divergence 1.129848%). She time traveled with Suzuha into the past, but got separated in 1998.

She is a war orphan and her true name is not known due to her family registry being destroyed.