This regressor story started out with a great mystery premise, in which our main character watches her whole family is ruined financially and murdered one by one. She regresses back into her cute child form with the motivation to save her family and loved ones. Beautiful art style and character design. Builds a nice selection of handsome gentleman around our main girl. The problem happens when the premise I stated above seems to jump the shark when Calliope is growing to be a teenager, and closing in on when things go wrong in her past life, but the plot is instead about her becoming a"folk song" idol, focusing her energy on her singing that has an unexplained magic property and spirit whale guide.