Given the timeline shenanigans I assume that Daisy and her sister are about the same age even though Kora was born way before her.
That would be weird to have an older sister who's like 20 years "older" but the same age... then again we had Deke running around who technically wasn't even born yet.
I don't think they revealed the name of Kora's dad or what happened to him?
To me it sounds like her sister believes in her and wants to be a better person, much like the relationship between Coulson and Skye. Kind of like Daisy being the older sister to her older sister, life experience I guess.
Not sure how old Kora is supposed to be, but the actresses who play them are around the same age.
Was nice to see the return of Davis, though I do wonder where they get all these memories and whatnot to be able to make LMDs and such of people after the fact.