Mrs. Kimura...?
Yes, it's Mr. Kimura's wife. Yes, he has a wife, and a terribly sweet and pretty one at that. Not only that, she really seems to love him and mentions his attractiveness as one of the reasons she fell for him. How did this happen?

Why her?
This fanlisting had to be made to teach the world to appreciate the sweetness that is known as Mrs. Kimura. I first loved the mere idea of her character as having a loving wife gave Kimura's comical character a nice twist (not to mention a new way to look at his freakyness), but when the girls actually met his wife she turned out to be so sweet and kind I just couldn't help but love her.
      By the way, the name of the fanlisting comes from the part where she comes to drop off Mr. Kimura's lunch and mentions that he calls it his "Love Wife" lunch special (in English).