Kinda spoiler below:
For the good ending you must get the sum of Drackey and Scylez's affection to at least +5 by the time Scene 24 rolls around. Affection is gained by dates, clothes, and answering questions in a way they like, this includes questions they didn't ask but are present when you might answer. If you do so, Drackey will agree to lead a raid on the Redprints and ask for help doing so.