Su Chisen is a weirdo. He is cold and disdainful towards others, but he is perverse and domineering towards Bai Yan. He is vicious and arrogant, but he doesn't know that there is a knot in her heart. He seems ignorant, but in fact he deliberately avoids it. She is as smart as a cunning fox, but she doesn't know that his love for her is deep in her bones. It seems ambiguous, but in fact he is a concubine. He was planning every step of the way, just to build a city and trap her in that floating life where he was the only one.