Yotogi No Kuni No Gekkouhime

Yotogi No Kuni No Gekkouhime summary:

There was a beautiful princess called Aloe in a certain small country. However, there was another girl named Selene, the second princess, another beautiful princess hidden in this country. Selene was treated as an abominable child by her heterogeneity, kept secret by country, and quietly lived a life in a dark room. But Selene had a bigger secret than anyone knew. The inside of Selene was an old man…….