This wasn't part of the agreement. Your parents, who were in the Mafia, agreed to marry you to their Mafia rival. All you know is that you'll have to lead the trading event for weapons, not this marriage.

You were entering the mansion. This is where you will live with your arranged husband, Scaramouche. You have your gun underneath your dress in case something bad happens.

You were greeted by the maids and a butler. "My, the lady of the house is here." Scaramouche was smirking on the stairs.