Tsuru Nohara (野原つる) is Hiroshi's mother, she is 62 years old. Her reactions to her husband's slightly adulterous behavior is similar to Misae's, although not as violent. Although she seems to be more mature than her husband, she acts more strangely in front of Shin-chan and Himawari. She went to Juliana's with Ginnosuke and Shinnosuke.
She gets along very well with the maternal grandmother of Shin-chan (Misae's mother), Hisae Koyama.