Novoland: Eagle Flag Episode 21

Upset, Gui Chen did not inform Yu Ran he was heading for Revelation City, she traveled with her aunt to meet him there. Ji Ye and the other prisoners travel far away to rebuild the ancient plank walkway to mine the iron ore from the mountain. On the way to Revelation City, Gui Chen stops at Ancient Stela Entry to honor the soldiers who died in battle. He meets Lei Bi Cheng, leader of Chenyue, on the way, who reveals Gui Chen needs treatment for illness or it will eventually cause irreversible madness. The lady escorting Gui Chen turns out to be the Emperor's sister. (Source: frankly at kisskh)