Video clip is from Youtube. Follow this link to the website if you can't see anything.
Didn't say much about the story, but all the characters we know of, like Ryubi, Chouhi, Kan-U, Sonken, Sonsaku, Sousou, Shiba-I and Ryofu were introduced. From the battle scene, it's everyone versus the army of Dong Zhuo and Ryofu first it seems.
Also, I hope the artist put some emotion into each character. Everyone just look so plain in the teaser ^^;