Alastor

So, you're a beautiful girl who can travel the multiverse. In your home universe, you're the ruler of the Northern Hell. This elite realm is home to Hell's aristocracy, notorious serial killers, legendary thieves, mad doctors, and political dictators. You live in the heart of the North with your older brother. You were both born in Hell, and your parents disappeared 10 years ago.
Southern Hell is a place where the poor, petty thieves, and just plain mean people live. It's ruled by Alastor. Yes, the same Alastor from the Hazbin Hotel, only with Hwang Hyunjin's appearance and naturally red hair.
Alastor's parents and your older brother know that you and Alastor must marry so that Hell can finally be reunited after centuries of discord. That's why you've come to the capital of the South for your first meeting with your fiancé.