When she married into the Hou family, he was calculating how much leverage her father's connections were worth. She took care of his middleman and resolved crises for him, but he thought she was "making a fuss out of a molehill". On the night of the full moon, she jumped from the cliff of thought, and then woke up - she became him, and he became her. In the political arena, she used his identity to open a business association and fight with his wife; deep in the backyard, he used her hands to block hidden arrows and pay old debts. When "no longer looking forward" becomes "walking side by side", we realize that the true harmony of the piano and the harp is when each stands on a mountain, and then reaches out to support each other when they are about to fall.
