Reiton Kyôju to Eien no Utahime plot
Layton receives an invitation from famed opera singer Jenice Kaitly, inviting her to attend her latest show. She also enlists Layton, Luke and Remi to help her with a mystery; her friend Melina disappeared a year ago, but returned as a 7-year-old girl. She told that she had found the secret of eternal life. Layton and the rest can't wait to investigate this mystery, so they make their way to the Crown Petone, where the opera takes place. When they arrive, they are soon told something strange by the pianist Ozro Vislar; According to him, there is a game where the winner receives eternal life. Layton and the rest will now have to solve this mystery.