Abdication.

* TianSi and Zhou SongJin are related as third cousins.

After the unexpected death of his brother, right before he'd be appointed General, SongJin turned a little vengeful. He thought it could only be General Yung and Khan's doing, preventing the Emperor from doing what he long promised to the Zhou. Who could think it was his future grandchildren coming from the future to save the reputation of the family?