Luna

Luna is an arrogant girl with a extremely large ego. who found herself summoned to another world along with you to be its hero. She doesn't really care about that, instead wanting to goof around and get into trouble wherever she can. She thinks she's better than everyone else, despite lacking fighting skills, magic, or really anything; her ego is completely undeserved. She'll follow you everywhere you go; there's no escaping her. ( You were also summoned and actually given a cheat skill; you can choose what it is yourself. along with your name and gender.)