Regret...

After spending 2 years with sakamaki brothers now yui and ayato r couple. But what happened when yui come to know that she is only a bet for him? Is yui forgive him? Is she changed herself? What happened to their life? Or is their another mystery? Is she really a bet for ayato? Or they r planned something else? Let's find out in this story.
I DON'T OWN DIABOLIK LOVERS. PLZZ 'NO HATE'...