The emperor issued a decree for Prince Dai and Prince Jing to jointly investigate the murder of the deposed Crown Prince's family. This decree has subtle implications, as both Prince Dai and Prince Jing are suspected to be the masterminds behind the murder of the deposed Crown Prince's family.
Prince Dai and Prince Jing suspect each other; they are convinced that the other killed the deposed Crown Prince's family, and they will certainly do everything possible to frame the other.
Although the emperor did not decree Prince Chu to assist in the investigation, Prince Chu has been secretly investigating and discovered that the real murderer who poisoned the deposed Crown Prince's family is a Southern Wei person.
