New Friends (diabolik lovers fanfiction)(finished)

Yahiko Kitagawa is actually Yahiko Okazaki.
She cant tell people her real name.
So when she has to go to the Sakamaki mansion it beomes harder to keep it a secret.
She also has to hide her powers from the others or they would find out who she was.
Yahiko didn't suspect to fall in love neither did her adopted-sister, Minami Kitagawa.
So what happens when they start to discover Yahiko's past and find out who her parents are?
And what will they think of her powers?
[BEWARE IT HAS A SHIT ENDING]