In some was yes, but differences existUmm, wasn't Namine and Kairi the same as Roxas and Sora.
Kairi never because a heartless it's not possible. Namine being a special nobody was born in a unique way different than other nobodies.Like the only reason Roxas and namine even came into exsistence was because Kairi and Sora became heartless?
Welcome[I am new to Kingdom Hearts... Sorta...]