In a certain small country, there lived a beautiful princess named Alue.

However, this country also harbored another hidden beauty: a girl named Selene, the Second Princess.

Due to her unusual nature, Selene was treated as an abomination. The entire nation conspired to keep her existence a secret, and she quietly clung to life in a dark room.

But Selene harbored an even greater secret that no one knew.

Inside Selene was… a middle-aged man.

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And so, the ossan princess, who should have remained sealed, was released by TO Books as a book on October 25, 2015, like a beast unleashed from its cage…