Saiki Kumi

Kumi Saiki (斉木 久美, さいき くみ lit. Saiki Kumi) is the wife of Saiki Kumagoro, Saiki Kurumi's mother, the mother-in-law of Saiki Kuniharu, and grandmother of Saiki Kusuo and Saiki Kusuke.

Appearance
Despite her old age, Kumi keeps the style of a modern teenage Japanese girl, wearing clothes sexy for her style and a skirt shorter than her knees.

Background
Kumi is the lackadaisical kind of grandmother with a habit of wearing teenager clothes. After learning about Kusuo's psychic powers, she started asking him to teleport her to Shinjuku.

Trivia

 * Like the rest of her family, her name,, is a pun on the word Psychic (サイキック Saikikku).
 * Kumi and Kumagoro's Japanese voice actors, Rie Tanaka and Koichi Yamadera respectively, were actually married at the time of their debut episode's production, but the two divorced in 2018.