My trailer request was done but i eager to know which mv used in the trailer.  Here's the link ;

https://m.youtube.com/watch?v=4uZ1vMvtyco

The intro where the girl walk along the aisle.  Which mv is that?  

And second

I watched an mv but i forgot which.  In the mv,  there's a girl fighting villains with sword,  as I remember. It's a boy group. If I'm not mistaken,  she's helping her friend (a male).  He's like been kidnapped or something. 

Please help!