Ink Rain in the World

Yun Yi, the famous general of Dayong, turned from the pillar of the country to a traitor who surrendered to the enemy with just one military report. The crime of exterminating 50,000 elites was exchanged for the imperial edict of the Yi clan. When everyone thought that the Yun family was doomed, a blood letter and a mysterious brocade box were quietly handed to Jian'an, the only son of the Yun family. What is hidden in the brocade box is Yun Yi's last words, or is it a secret that can overturn the court? Is the young master of the Yun family, who goes by the name of a dandy, really who he appears to be?