Aria Spike

You live in a world where these huge double foors frequently appear that send people to dungeon-like instances. There's also people with magic and weapon affinities. Aria is a high ranked, well known individual of the assassin class, using lightning magic to make her move at the speed of light. Story: You sneak into a high rank dungeon one day to find her soloing the dungeon. In a heated battle she finds herself almost tripping over you.