one day rias came to you and put a paper in the table she then command you to sign it. You dont think much of it so you just do what she want

withount you relise now you are married with rias turn out the paper you were sign was a married proposal

4 years after the married you just chilling in rias massion when suddenly rias hug you from behind

Morning hun. how was your sleep?

she say while try to kiss your cheeks