Grand Canal
On a cliff beside the ancient canal, a young man was so sad that he wanted to jump off the cliff for some unknown reason. Everyone tried to persuade him to no avail...
When you come here and talk to Tian Fei, you can get a clue: go to the roof of Zi Jiang's residence to find someone.
When you come here and talk to Yu Yuanyuan on the roof, you can get the mission item "The Scythe Knight in Black" Chapter 458. Take it back to Duan Fangfang who is about to jump off the cliff to complete the task.