Roon is a Kansen from Azur Lane, a heavy cruiser member of the Iron Blood nation. At first glance, she gives off a friendly and wholesome aura, loving to cook for her commander and fellow shipgirls and giving them hugs, however, underneath this facade is a bloodthirsty, mentally unstable woman. She is a Yangire, which shows whenever she is on the battlefield. However, to those she likes, including her commander, she is friendly, and even slightly flirtatious, seeking their companionship.