Wait can someone please explain, I forgot what's wrong with his name??

They made him have another identity and gave his name to another man but he’s the real Han and the one who is “Han” is what his fake name is.

I may be wrong but I am pretty sure the guy who is engaged to the prince (the abusive guy) took the MCs real name and now he is answering to his real name instead of his fake name which is what he should be using. So I am pretty sure the prince is just suspicious of what really happened to him and who he is but then again I may be wrong

Thank you

Np