Your dad is a policeman.

His dad is an ex-thug leader.

You like Taekwondo and Judo.

He likes playing piano and guitar, and composing songs.

You're superb at fights.

He is known as the music genius

You are strong.

He is weak.

Despite having total opposite characters and family background, you were forced to be engaged to him at age of 8.
When you thought he is finally gone from your life, now he is back.
There is only one similarity between you and him:
you both were forced into this engagement because of your moms.