Erotic novel, Korokoro Tanihara Yuki

Kaede, 40 years old this year, is a landlady at a small restaurant. One day, Kaede is shocked to hear the news that the president of a major yakitori restaurant chain has resigned. This is because he lived as the president's mistress for 14 years until last year and received considerable assistance. A few days later, the drunken president came to the store. Feeling sorry for him, who seemed to be in a mess without the resemblance of the former powerful manager, Kaede cheers him up by giving him a blowjob after closing time. After that, he listened to Mino's request and plotted a certain plan...