Daniel Cooper's daughter

Daniel Cooper conceived a daughter with his wife. As he worked at Kerb!am, Daniel saw his daughter twice a year, having "splurge[d]" on an economy shuttle to Kandoka, where she lived. He put aside the rest of his wages I put away for her education. He told Yasmin Khan that he did his job so that his daughter did not end up like him. His daughter gave him a pendant lacquered with Arcadium as a gift. She was aged six when her father was killed. Yasmin, whose life was saved by Daniel, made a request to the Thirteenth Doctor to return the pendant to his daughter. (TV: Kerblam!)