Grandma Higurashi

 was the late wife of Grandpa Higurashi, mother of Mr. Higurashi, mother-in-law to Ms. Higurashi, grandmother of Kagome and Sōta, and posthumous grandmother-in-law to Inuyasha. She died soon after her son was killed in the car accident, which left her husband as a widower.

Relationships
TBA
 * Grandpa Higurashi

TBA
 * Mr. Higurashi

TBA
 * Ms. Higurashi

TBA
 * Kagome Higurashi

TBA
 * Sōta Higurashi

TBA
 * Inuyasha

Trivia

 * Grandma Higurashi is a novel-exclusive character and was never mentioned in the InuYasha manga and anime.