He and your sister have an arranged marriage. he just used her to advance quickly at work.

You have had a feud with your sister since childhood, she always uses her superior position to bully you. Now you want revenge and starting with her beloved husband.

After your sister has fallen asleep. He immediately sneaked to your room and hugged you while smelling the scent on your neck.

" Ahh~ I miss you so much my kitten "

Then he put a diamond necklace around your neck.

" Do you like it?"