In terms of blood, the Crown Prince and Fan Xian were brothers. There wasn't actually any irreconcilable hatred between them. In the end, those were the matters of the elders. The Crown Prince had expressed to Fan Xian his willingness for peace. However, it was impossible for Fan Xian to believe this. He also knew that the Crown Prince did not have enough power or a strong enough state of mind to bring him down.
Thus, the biggest target for Fan Xian's actions for the past half a year had actually been the Eldest Princess. He had expected that the Emperor would only imprison her. Instead, he rushed to depose the Crown Prince. Fan Xian pondered this situation for a long time. He felt there was some problem with the order. Given the Emperor's long immersion in the wrestling ring that was the world, he shouldn't have made such a mistake.