Togawa Atsuya's novel," Reasoning After Dinner ", was a series of works that included three books: " Reasoning After Dinner "," Reasoning After Summer Afternoon ", and " Reasoning After 10 P.M.". The main characters of these three books were Reiko, Yingshan, and Kazufuri. In addition, it was possible that these three characters would be included in other series of novels by Higashigawa Atsuya. The specifics would need to be determined according to the author's work plan and publication plan.