Orsa was a Malean. He developed feelings for another Malean, Alëza.

Maleans were not supposed to have empathy for other beings or affection for each other. Maleans who did so were considered mutants to be destroyed. Orsa and Alëza were hunted by another Malean, Mykloz, whose mission it was to kill them.

The Sixth Doctor helped Orsa and Alëza get to the planet Bukol, where they could enter the Sanctuary and be safe from their people. After some misadventures, during which Orsa and Alëza posed as Steven Taylor and Dodo Chaplet, they safely entered the Sanctuary. (PROSE: The Golden Door)

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