Mako ended up marrying her boss's son after being introduced by him. However, she had actually been harboring romantic feelings for her boss, Tetsuzou. Mako's serious and indecisive nature prevented her from confessing her feelings to Tetsuzou, leading her to marry his son and become 'father-in-law' and 'daughter-in-law.' Unable to forget her feelings for Tetsuzou, Mako's relationship with her husband couldn't possibly work out, and they have never had sex since getting married. Meanwhile, it was decided that she would live with her husband's family, and Mako ended up discovering the family's twisted secrets...
