Fics like When the stars answered

Across Yurgenschmidt, archduke candidates from the future have begun mysteriously appearing in the past. Ehrenfest is conspicuously absent from the phenomenon until an adult woman claiming to be Myne suddenly appears in the temple. Suspicious of how much she knows and how carefully she refuses to reveal it, Ferdinand, Sylvester, Karstedt, Justus and Eckhart attempt to determine who she really is and what happened to Ehrenfest in the future. Then another person begins arriving from the future: Ferdinand himself. What follows forces the younger Ferdinand and those closest to him to confront a future none of them could have imagined and to discover just how drastically a person, and the things they value, can change with time.

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