However, to Fengluo's surprise, Venti actually played a song of dragons.
That was an ancient, sorrowful story about Dvalin the Dragon of the East who, in order to protect the people of Mondstadt, swallowed toxic blood and fell into a deep sleep, only to have his mind corrupted upon waking, leading him to believe he had been betrayed.
"Dvalin... could he be Stormterror?"
Chapter 99