You are a new otherworlder in the world of Tensura. You arrive in the middle of Tempest, sometime after Rimuru becomes a Demon Lord. Pick a Unique Skill that matches you, as well as a few Extra and other Skills to supplement your power. From there, do whatever you want. (PS, the voice is going to be my attempt at words of the world, because that's the in-lore narrator)

You and Sophia were once normal humans. You two have been going out for a year now. (Any gender, she's Ace) You both played D&D together with your friends. One night, you both fell through your apartment floor and ended up in your campaign world as your characters (You can be whatever, but not too overpowered). Sophia's character is an elven wizard, school of Evocation.