Awkward relationship with a frustrated stepmother

It's been five years since I got married. My husband is obsessed with his work and even has a delicate relationship with one of his stepchildren. His wife, Maika, was in agony from her boring days. However, by chance, he begins to have a slutty relationship with Kazuyuki's friend Kenji, and regains his happiness as a woman. The secret behind Maika's daily joy was felt with young people who are as old as their parents and children. One day, Maika, curious to see Kazuyuki trying to say something, went to his room with all her might...