Around 4 years have passed since the married couple, Wataru and Rumi, graduated from university and got married.
Their wedded life was smooth sailing with each day passing peacefully.

One day, Rumi, who was a housewife, said that she wanted to work as well.
Since long ago, the two had been saving up for their own home and for when they had children, and so she wanted to work to help with that.

Rumi was worried since she never even worked a part-time job before, let alone a full-time one.
Wataru was troubled, but in the end, because of his own wishes, he had to go back to work.

Hearing about this, the president of Wataru's company offered if she'd like to be a private tutor and a housekeeper for his grandson——

[Translated from the original website]