Shinkyoku Soukai Polyphonica ~Farewell Song~

A cave-in at a certain ruins resulted in the complete loss of the excavation party affiliated with Maynard University. It happened when they took out ‘something’ from the sarcophagus deep inside. Afterwards, two young girls who were actually founder spirits, Richelie and Esther, visited Phoron and Corticarte and warned them that the spirit-eating ‘harvester’ has awakened.