Kokoro o Hiraku Utaikata

An alliance pact is now made between Laarz, the country of Luccretias and Eroolia, a human kingdom. With Eroolia promising Laarz that they will seek a cure for the "Inadaptability Disease" that luccretias suffer from, KOKOUTA's heroine, Princess Myana travels to the human country to see how humans are treating her people on top of how the pact has progressed. What was originally meant to be a short trip, Myana is caught in the crossfire between the luccretias and humans. Ever since meeting Ludovic, chief of the Imperial Guards, she is reconsidering her decision to work with humans.