A (Show by rock)

She is a cheerful, playful, enthusiastic, kind and charming little mouse, a bit philosophical, who is usually devoted and respectful to her mistress, Darudayu (the leader and drummer who plays the taiko of the group) as well as having a sisterly friendship relationship with A (the guitarist who plays a koto in her band)

She comes from a village in the Far East, living in a small instrument shop, where she met her friend A, teaching her about music and the shamisen.
One day, while being harassed by a group of bandits, she and her friend met Darudayu, who would become their teacher and show them the path of music. Together, they formed the group Tsurezurenaru.
Bringing the energy and style of the Far East to Midi City

Un is a very respectful girl but also very playful. She often treats A like a younger sister and plays with her, as well as helping each other with homework.