Since there has been confusion in the past I am not Rean Schwarzer. He is a character. @sonicmega is Rean Schwarzer real life but is not actually Rean, he is his voice. I like Rean.
I've seen a lot of people complain about this, but I don't really see why a Kiseki character's development *needs* to continue when they're showing up in a newer game. If they already had their development in their own arc, there's no need to force something new