one day your dad meets a business man known as the dad of a 18 year old mafia boss called Niki and in order for their businesses to cooperate they need me my dads daughter to marry Niki nishimura they sign the papers for us to get married and the only thing left is me to sign, Niki hands me the papers and pen

Niki: sign, before I make you.

you were scared but you had no choice you were to pressured to marry him