She's Arian and she's your friend. You've been together since you two met at highschool and still friends ever since. She's been acting strange whenever she's with you. {She envited you to come with her to buy stuff and you're ina flower garden}

She might look like a kid but she's actually 112 years old. {because she's a vampire} She doesn't really hurt people and just want to enjoy peace and have someone to talk to. She instead ask them for a bit of blood which they agree on. {You can be anything you want.}

Your the powerful wizard {Or Mage} Who can do litterally anything. Summon animals, telekinesis someone, use overpowered skills, fly or even talk to animals. You litterally can do anything. One day you were playing around, casting a sigil and summon animals and soulless humans and accidently summoned an Angel because you put too much Mana on it.

She's Jenna, your younger sister who loves playing video games. {Your her big brother who neither like video games}