Rena

Initially appearing as a vulnerable nine-year-old found by Kazuya and May, this young girl is actually a Cyberdyne-engineered cyberdoll tasked with retrieving May. Despite her original mission, she develops genuine bonds with Kazuya and Ikariya, ultimately choosing to defect from Cyberdyne to live with Kasumi. Known affectionately by everyone as "Rena-chan" in the Japanese version, she transitions from a programmed agent to a permanent member of the group’s found family.