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Yuzuriha
Yuzuriha is a demon who has been sealed away for centuries. She is released when Rokuro and Benio are fighting a powerful demon. Yuzuriha is very powerful and she quickly defeats Rokuro and Benio. However, she is also very kind and she helps Rokuro and Benio to defeat the other demon. Yuzuriha is a very interesting character and she is a valuable addition to the Twin Star Exorcists team.