I've Returned From Death and Will Steal My Brother-In-Law From Him!

Her brother-in-law has died - it was all too sudden. Adelaide is 13 years old and adopted into the Duke of Barthélemy family. She is suspicious of the sudden death of her beloved brother-in-law, Maximilian, and suspects that the death may be related to the broken engagement between her brother-in-law and his fiancée. She tries to find out the truth, but falls down the stairs. When she wakes up, Adelaide has reverted to being five years old. What can she do to prevent her brother-in-law from dying? "I will make my brother-in-law happy!" Adelaide struggles to use the knowledge and memories of a 13-year-old to change the future, but...