|Relations||Honoka Ishikawa (granddaughter)|
|Anime||Summer Vacation Started|
Grandmother Ishikawa (石川祖母 Ishikawa sobo) is a character in Non Non Biyori. She is the grandmother of Honoka Ishikawa from the father's side.
- The surname Ishikawa means "stone" (石) (ishi) and "river, stream" (川) (kawa).
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