Undyne is a secondary character in Deltarune. She is the Chief of Police for Hometown. hot-blooded and enthusiastic, and shows passion in everything she does, including things she does badly, such as singing. Her passionate nature leads her to overreact to minor incidents and she becomes easily bored with the low level of crime in Hometown, she would prefer to have some sort of action occur during the course of her duties. She eagerly looks forward to beating up any criminals or wrongdoers.