K's grandmother is a minor character in the Karakuri Dôji Ultimo series.
She is Kawagoe Kei's grandmother and is the one who raises him after his parents were divorce. Once her grandson became an adult, she continues to support him by giving him money to live off on, as K's laziness and incompetence prevents him from getting a job.
Being elderly, K's grandmother is old women of short structure with deep wrinkles, squinty eyes and wears with glasses. She has white hair with a notable dark-color forelock and wears it in a bun.
Although she only made a small appearance, K's grandmother shown to be kind and wise, being the loving paternal figure to her grandson since he was young and gives him philosophical advice to help him understand the world better.
|The Good Dôji Club:||Yamato Agari · Shin Ekoda · Yoichi Oizumi · Koun Shakujii · Musashi Murayama · Hiroshi Kumegawa · Machi Shina · Makoto Sayama · Akitsu Otake · Hibari Oume · Kiyose Matsumoto|
|Allies:||Darumada Masami · Hyoe Tokorozawa|
|The Evil Dôji Branch:||K · Akira Hidaka · Kaizo Oume · Fusataro Fussa · Sumako Miyoshi · Mizho · Rune Kodaira · Hana Koganei · Tomomitsu Iruma|
|Unspecified/Neutral:||Roger Dunstan · Miyu Murayama · Taiji Kokubun · Fushimi Agari · Yuu Ekoda · Shinsaku Ekoda · Saishinsaku Ekoda · K's Grandmother|