"The Song of the Dragon and Freedom" is indeed Act III of the Prologue in Genshin Impact, centered around the region of Mondstadt. Here’s how to go through this quest. Remember, this guide reflects the general gameplay as of this writing. If there have been recent changes or updates to Genshin Impact specifics like rewards or exact quest mechanics might differ.
Unlocking the Quest 
1.Prerequisites: You must have completed the previous acts of the Mondstadt
Archon Questline:
2.Act I: The Outlander Who Caught the Wind
3.Act II: For a Tomorrow Without Tears
4.Automatic Trigger: Once you've completed Act II, "The Song of the Dragon and Freedom" should automatically start when you reach the appropriate Adventure Rank (AR), which was AR 10 when the quest was first introduced, but this might vary with game updates.
Quest Walkthrough:
1.Begin at Mondstadt: The quest typically starts in Mondstadt. You might receive a prompt to meet someone or head to a specific location.
2.Meeting with Jean: You'll likely have a discussion with Jean, the Acting Grand Master, at the Knights of Favonius headquarters. She will brief you on the current situation regarding Stormterror, also known as Dvalin.
3.Investigation: You might need to gather information or items. This could involve:
4.Speaking to residents of Mondstadt or key characters like Venti or Lisa.
5.Heading to locations like Windrise or Starsnatch Cliff for clues or to interact with the environment.
Confrontation with Stormterror:
6.You'll head to Stormterror's Lair. Here, you will have to navigate through a domain-like area, potentially solving puzzles or overcoming obstacles with the help of Venti’s abilities or other characters' skills.
The Battle:
1.Engage in battle with Dvalin. This fight has multiple phases:
2.Protecting the Platform: Use characters with ranged attacks or abilities to hit Dvalin while avoiding his attacks.
3.Purification: There might be a mechanic where you need to purify or heal areas corrupted by Dvalin's power.
Aftermath and Revelation:
4.After defeating or pacifying Dvalin, there will be scenes where more about the story, Venti's true identity (if not already known), and the history of Mondstadt are revealed.
5.Return to Mondstadt: Conclude the quest by returning to Mondstadt, where you'll likely talk to Jean or Venti again, wrapping up the narrative arc for this part of the story.
6.Quest Completion: Receive your rewards, experience some narrative closure for this chapter, and perhaps set the stage for future quests.
Rewards:
•Primogems: A staple reward for completing significant quests.
•Adventure Rank Experience: To help you progress in Adventure Rank.
•Mora: For general use.
•Character EXP Materials: To help level up your characters.
•Artifacts or Weapons: Sometimes, significant quests reward gear.
•Achievement: Completing this quest might also grant you an achievement.
Additional Notes:
•Character Usage: Make sure to have a well-rounded team. Characters like Venti (if available), Amber for puzzles, or any character good at ranged attacks can be particularly useful.
•Cutscenes: Pay attention to the cutscenes and dialogues as they enrich the lore of Genshin Impact significantly.
Given that Genshin Impact continuously evolves, for quests introduced in updates or specific details not covered here, checking the in-game quest guide or recent online resources like the Genshin Impact Wiki would be beneficial for any changes or additional tips post my last update. Would you like to know how to generate an image related to this quest?
