Upon hearing the confession of Shan Xu, the Thunder Emperor finally realized why such a loyal knight would suddenly choose to leave and even avoid meeting his brother, the first prince of the Regal Lei Clan and Shan Xu's Master at that time. The guilt of the fact that his own kin had betrayed the master he had sworn loyalty to is simply too embarrassing. Even though he is one of the few people who had sacrificed his life to protect Lei Yuya that day, the guilt brought by his family pulled him down. No wonder after punishing the person who caused the accident that day, this knight chose to disappear completely. Because of the guilt in his heart, he did want to burden his brother with the sin caused not by himself but his family.
