About (Y/N)

(Y/N) Komori is Yui Komoris adoptive sister she is a really famous person and while on her tour she met Karl Heinz and told her that she will be staying with her sister Yui Komori after her tour at the Sakamaki house with six vampires

How will Yui react when her sister finally comes back?

How will the brothers react when they meet (Y/N)?