The Sun-Wheel and Mt.Kanna Guide in Genshin Impact

After the cutscene, use the teleport waypoint in the Autake plains and go to Oina beach. Use the feather on the thunderbird statue near the tree and be prepared to fight some Ruin Sentinels. After defeating the enemies, touch the feather that appears once again. After the cutscene ends, use the teleport waypoint in Autake plains again and go south to the quest area. Head to Autake Plains There is a hollow entrance to Mt.Kanna near the Wakukau Shoal.

Defeat the Rifthound monsters that appear when you reach the quest area. Use the feather on the thunderbird statue that is not lit up and touch the feather near the stone pillar. Wait for the cutscene and head for Mt. Kanna. You can climb the mountain by going to the hollow area near the Wakukau Shoal.

Investigate the altar inside Mt.Kanna and be prepared to fight the Thunder Manifestation. The area is small so try to bring characters like Ayaka or Mona so you can avoid its attacks. Once you defeat the Thunderbird, use the feather near Ruu and touch the feather that appears. Go back to Ruu and talk to him after the cutscene to continue with the story. Go to Seirai Island Talk to Sumida in Inazuma City to complete the quest.

After taking Ruu, use the teleport waypoint near the quest area. Once the cutscene ends, return to Mt. Kanna to return the feathers. Talk to Ruu and teleport back to Inazuma City and report back to Sumida. Go to Kiminami Restaurant and talk to Sumida again to complete the quest. Completing the quest will give you the "Thunder is Forever" achievement, 40 Primogems, and 3 Hero's Wit as a reward.