Stopped reading at chap 77... Lottie is in the demon world with his dad and bihan... His dad got a 2 months vacation from the emperor after Lottie make a wish to the emperor after winning the mock battle competition. Lottie is suspecting that she might be a golem because she learned that her father can make an alive with soul golem but it wouldn't be able to last more than 10 years...it's the age where she died in the book she read.
Monster Duke's Daughter