Maina, who lives with her husband. she is spending happy days even though she doesn't have children yet. one day, maina is asked to be a hobby photo model by kouhei, her husband's father, on the condition that she wears underwear. maina had a reason why she couldn't refuse. it was because this kouhei had saved her family's factory. kouhei's demands escalated, and he approached maina while stealing glances from his son...!
