I found this link on mangafox in a thread of the Gu Fang Bu Zi Shang manwha.
The link to the clip-
http://www.56.com/u15/v_NzAzNDEzMDg.html
(by the way, you have to deal with a couple of commercials before the clip starts)
The link to the thread that I found it in-
http://forums.mangafox.me/threads/473260-Virtual-Novel-CG
It starts when Pingting was going back after visiting the shrine and she receives the qin. (Just so you aren't confused from the start, the girl in green is Pingting) It ends with the promise of 5 years of peace.
For people who are the type to "read the book but not watch the movie", you might not feel like watching this, but this video is pretty interesting so you should try it (but it might be a little boring when they're talking for people who don't understand chinese because there are no english sub. But there are chinese subs so you won't have any trouble if you can read chinese.)