She’s right next to the waypoint shrine at the center of the village, at the top.

Learning it narrows down the search to the top of the village for you to locate Ruoxin. When you speak to the villagers, they recommend you to talk with Granny Ruoxin. The next task is to go north to Quigce Village and speak to the locals about what you found on the stone. Approach these statues to continue the quest. After defeating the Ruin Hunter, investigate the ruins it was protecting, and then you need to find various statues near the large, orange crystals jetting out of the ground. The quest takes you to the northwest of your position at Yan’er, which should be highlighted on your map when you accept the task. However, they warn of a Ruin Hunter who resides inside, so you can expect one to be guarding the interior of the ruins. The first step of the quest is to investigate the ruins that Yan’er wishes to learn more about discovering the origin of Chi in the land. You first pick up the quest by visiting the Qingce Village by speaking to the Yan’er at the southern portion of the map near the ruins. We’re going to point out all of the smaller parts to make sure everyone can effectively finish it and move on to their next adventure. It can make finishing it a little complicated, but with a bit of time, effort, and keeping your eyes open, you’ll be able to finish it, no problem. You have to work your way through, and not all of it them are obvious. There are several sections of this quest. For many, the Chi of Guyun quest in Genshin Impact takes quite a bit of time.

Genshin impact search the vault