Update by Gaikiken - Equellum/Fabula: Carmen Cygni 0.4.0.5 - Adult Sex Game

Our protagonist horsegirl, on her new life in the two of Umikaze.
Upon her first few days, the town’s castle, Vigil Castle, suddenly transforms into a tower at night.
What could have caused this? What mysteries lie inside Vigil Castle at night? How many doughtnuts will Roz-chan eat?​