Questions about the continuation of Fantasy Three Kingdoms 2

In the map "Between Two Pillar Spring Crystals", you must first go to the icicle on the right side of the map. There will be a plot asking you to find something that opens the road. Then go to the north and south roads to the end. You will meet Yan Liang and Wen Chou respectively. If you win, you will get two things. There is a plot before going back to the icicle, and you can go there afterwards