This gonna be a Shuu x reader with angsty feels

One month after the sisters, (Y/N) and Yui, both come to the Sakamaki mansion, they both have dreams about someone calling them 'Eves'. They meet with the other four brothers, whom the Sakamaki don't like, named the Mukami. Who are the Eves? What do the Mukamis want from them? And who are Adam and Eve?