Miyu is one of two young girls that Tanner takes care of. They are assumed to be his daughters, though not known if by blood or by adoption. They serve as minor mascot characters for the militia side of the story and can be seen having fun interactions with some of the other lead and supporting cast. They tend to show up with Luz when appearing and are very energetic.

Miyu is the energetic red head of duo. She is constantly running around, asking questions, and getting excited over new experiences. She is often laughing, boasting, and teasing with Luz and has a vigorous personality with a bit of sass.

The voice range for Miyu is for that of an 8-11 year old. Anyone going for the role should be able to do a hyper childish voice.