Cross-Dressing Villainess Cecilia Sylvie, Vol. 4 (manga)

Cecilia Sylvie, survivalist crossdresser extraordinaire, is ready for a break. That‿s what summer vacation is all about, right. But when Prince Oscar comes to visit the family mansion, she‿s got to put her best foot forward as Cecilia‿and ensure he never finds out that she and Cecil are the same person.