上井 友美

Is in a good marital relationship, and has a son. 

She has an exceedingly sociable personality that even the reserved Hideki quickly opened his heart to her. Despite her confidence with her looks, she's diligent when it comes to exercise and the like, because of her worries with her age. 

At first, she never saw Hideki as a man, being that he's far from her type and because of her status as a married woman, but Hideki's earnest and straightforward attitude moved her heart. 

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