Kimiko bears a striking resemblance to her mother, having her black hair with a single lock of hair falling down the middle of her face and a Bob-cut she also inherited her fathers turquoise eyes as while as her mother's face and eye shape as while as her mouth. she is considered very cute , Kimiko wears a turquoise kimono with purple flowers on it on the back of her head is a blue ribbon.
Like her grandfather kimiko's favorite food is ohagi. Kimiko is a cheerful,considerate and kindhearted young girl she adores her family and gets excited to see her Dad when he comes home and enjoys visiting her late grandparents graves bring them flowers hoping it will make them happy ,she seems to be very close to Rangiku she seems to care about her older brother and vice-versa , to which she hopes to play with him whenever he can, Kimiko has a very close attachment to her parents as she refers to them as"mama" and "papa" .Kimiko is very mature for her young age helping her mother with chores and getting her father and brother up when they sleep in.she also takes after her paternal grandfather being that she can correctly judge people character as noted by her mother and knows when people are lonely she observed that sumire was very lonely and wanted to know who her dad was.she is very supportive and understanding of her often absent father and his captain duties but yearns for him to be home at times. However kimiko is not without a temper like her paternal grandmother and mother she can become very confrontontional and violent when she is provoked and prone to striking people on the head showing a strong attachment to her favorite plush panda when accidentally damage by jushiro ,she quickly showed a intimidating side and striked him on his head this overall display of aggression made her older brother vow to never make her mad again. The same event also cause her father to be terrified of her also vowing not to get his daughter mad.