Can you recommend a novel about the female protagonist who is a maid trying to escape from the castle, something like a vampire?

My Ghost Castle fits your requirements! At first, the female protagonist thought that she was a mechanical maid, but later she found out that she was a Zerg. Then, he was told that he was in a maid game and that he would die if he could not complete the mission. It had something to do with vampires. After all, there were ghosts around, and the female protagonist had armed her maids. This book has humorous parts and thrilling plots. I recommend it to you.😋I hope you like this fairy's recommendation. Muah ~😗