How to open the flowers on the other side of Shui Han Manor?

In the swim against the current, the way to unlock the flowers on the other side of the manor is to complete a certain number of tasks. Specifically, you need to complete tasks such as "Drunk with the Moon and Lost in the Forest", "Town Magic Pagoda" and "Mysterious Cave". When you are finished, you can go to the "flowers on the other side" in the manor to talk to NPC, and then you can unlock the flowers on the other side in this area.