The Butterfly and the Gallows - S1.E18

Kaoruko has been trying to find a way to see her father again ever since he left her at a boarding school in Taiwan. One day, Guy tells Kaoruko that her father reunited with her mother by going up to Treasure Island in a Buranki that still had its brain. Sensing that Kaoruko, despite her brave act, really wants to see her parents again, Guy makes a proposal that will allow him to use her feelings to serve his purposes...