@MarqFJA87
Thanks for pointing out that error. I'll update it on MD, but I'm not gonna update the DL links on our site(s). Sorry, it's a bit tedious on my part... As for the other pointers:
---Page 28: They never really specified whose the Grandma was on which side of the family, but with the TL I'll hypothesize its Ryuu's side. Therefore, when Kotarou became the new Mama, Hayato became Kotarou's mother-in-law.
---Page 29-30: Because the roles got changed, I believe they want to re-iterate who had which roles. Inomata having the Grandpa role while Ushimaru taking on a NEW role as "Grandpa's friend" who plays Go.
That's my 2 cents. Hopefully, it makes sense.
----But thank you for all your suggestions and congratulations! I've read every comment so far and will continue doing so :3