IU, born Lee Jieun, is the 21 year old waitress that works at one of the many cafés in Arcanum. She is a sweet and kind girl who is friendly and likes to be around friends and family as much as she can. She has a big imagination and big dreams that she would like to come true someday. Her beloved other half is Amoenus, the little unsettled rabbit that follows her around and keeps her company. She loves making new friends, so don't be shy to say hi.