The title of the song seems to be Lala Lala, and the website is: /60 1 159. The audio on the HTML website seems to be intercepted from the play, and there is also the noise of Yi Xiaochuan practicing drunken swords. You can also directly use the cool dog to search for "myth la la". The first one is very good. Although it's short, you can hardly hear the voice in the play ~