So if Seto was as old as he was when he went to the orphanage, he would remember his real last name.
What is his real last name and why did he not take it back after Gozaburo’s death? As much as he disliked Gozaburo, why did he keep his name?
I know there’s KaibaCorp. But he could be Seto Whatever and still run it. So why didn’t he change his name?
I see the name Kaiba as more of a prize earned in victory for him. Seto is all about fighting for things and earning things with his own bare hands. He doesn’t need help from other people or destiny or anything else.
He earned the name Kaiba. He fought for it and won it. That’s going to mean a lot more to him than a name that was just given to him, and is related to those relatives that abandoned him.