Polyphonica

Requiem: The Singing Spirit (1x11)

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Terero Termin, a renowned One-Man Orchestra developer, asks the Tsuge Office for help in developing his Counterfeit Rainbow, an automatic instrument that can play Commandia without a Dantist. However, he dies before finishing it. While in the town, activity from anti-spirits movement are becoming more dangerous, and rumors about a spirit who can Commandia. Believing that the Counterfeit Rainbow has the soul of Termin, Krista sings the Commandia even though it endangers her own life.