existence of Eris

Ari the weird girl at high school changes totally after her 16th birthday
and to top it off three hot triplets join her school when she meets them though something about their eyes remind her of the ones she saw in her dreams
does she know them, their demeanor is dark but they always soften around her they're mysterious but give way when she's close
will she figure out who they are
and what's going to happen when Ari starts seeing dead people and hears voices
what do the triplets know about her that even she doesn't know about herself