Maria's Adventure in the Demon World

Maria, a 14-year-old middle school student, is not only an outstanding ballerina in school, but also has a family that always loves and supports her, including her grandfather Vasily and her eccentric cousin Alexey. She has never met her father Yuri. Her grandfather told her that he died before he was born, and she has never met her mother. However, on her 14th birthday, she discovered that her life experience was not that simple.