The Secret of Hildegards

Summary pulled directly from Steam - Some text may only be applicable to Steam platform

Abigail Hildegard, daughter of the leader of secret order, once she was told that her father disappeared. She should go to the family estate, headquarters of the Order, to find out what happened. She finds the family butler there. He was lucky not to suffer in a raid on a house and told Abigail that a secret weapon is kept in the house. And with it help it will be able to rescue her father out of trouble.
What kind of weapon it is and how to find it you will know by passing game, "The Secret of Hildegards"

Features:

Mystifying storyline
Hilarious gameplay
A lot of mini games
More than 100 draw-by-hand scenes