The status of the manga series "Shinigami-sama ni Saigo no Onegai wo" is completed. I understand that the author has left the 18 chapters as clues to solve the overarching mystery of the story. However, the ending of the story, which features

The kidnapping of Shizuka Aida by Minamida

strongly suggests that the story has not ended. The use of "Shizuka Aida" as a "piece" should appear in a continuation, but is there such a continuation planned?