Age: 34
Height: 168cm (5'6")
Weight: 50kg (110 lbs.)
Bust: 123.45cm (K) (48")
Waist: 55.5cm (22")
Hips: 89.9cm (36")
Blood Type: O

Keiko is the mother of the Shinonome family. She ran into Densuke one day on the street. When she brought him back to her house, Chiharu was surprised to find them together. Keiko has the largest breasts of the family, and they were of similar size to Chiharu's at her age.