Saiki Kumi

Saiki Kumikou is the wife of Saiki Kumagorou, Saiki Kurumi's mother, the mother-in-law of Saiki Kuniharu, and grandmother of Saiki Kusuo and Saiki Kusuke.

Background
Despite her old age, Kumikou keeps the style of a modern teenage japanese girl, wearing clothes sexy for her style and a skirt shorter than her knees. After learning about Kusuo's psychic powers, she started asking him to teleport her to Shinjuku.