Miruku-chan is a mysterious hedgehog who can speak human language. She appears in the anime Twin Angels BREAK as a supporting character who initiates the story by recruiting two third-year middle school girls, Meguru Amatsuki and Sumire Kisaragi, to become the new Twin Angels after the original team goes missing. Her role is to issue orders to the pair, directing them to collect sacred medals and fight evil. Despite her cute and small appearance, she possesses a strong-willed and assertive personality. Her motivations are initially unclear, and her true identity remains a mystery for most of the series. In the final episode, it is revealed that Miruku-chan is a robot, and she is ultimately re-exterminated by the three predecessor Twin Angels. She wields a shamisen as a weapon, and her name is derived from the Tsugaru Jongarabushi, a traditional Japanese folk song typically performed with that instrument. Her key relationships are with Meguru and Sumire, whom she guides, and with the earlier generation of Twin Angels, who are connected to her hidden origins. Throughout the story, she serves as the catalyst for the protagonists' transformation and growth, though her own development is limited to the revelation of her artificial nature and her eventual destruction.