Why does Zane keep his identity secret? 😗
Because of this line from Season 4, The Day of the Dragon.
Everyone thinks Zane is dead... Even Zane. He believes he’s just a copy of the original Zane (an idea given strength considering he’s not the EM of Ice anymore...), and because of that he doesn’t reveal his identity to his friends, since he thinks he’s not as good as the OG. He works as Samurai X to help his friends without cuasing them any more distress by looking like someone they lost, and also to prove his worth outside the legacy of the white ninja
(To be clear, Zane isn’t a replica, he’s Zane! He has gaps in his memories from putting himself back together and that convinces him he’s not the same person, but he is. Without his support system to help him conquer his fear, he simply believes hes not himself and is acting like thats the truth.)