Oh yeah, Grandma is the better of the two. However, I really disliked how she was “fair” to Dmitri’s evil stepmother despite seeming to know the situation with the MC being bullied by her. The evil woman literally tried to kill the cat beastfolk and was always blatantly undermining Dmitri’s and his wife’s authority in the household, yet the MC needs to apologize for putting the bitch in her place?? What??
Feel free to ignore. I just get so mad whenever I think of that “killer lily and subsequent fake allergy” arc. Grandma is either totally oblivious to her daughter-in-law’s evil nature or she’s trying to remain stupidly neutral despite involving herself in the MC’s affairs.

Between the in-laws, i would prefer the Grandma, she may be strict but she has been nothing but kind and and maybe a little stern but not too the point you dislike her. She may also be a little old fashion, but there's an air to her I just like compared to the mother-in-law who is really deadset in her ways of being just vile