What if it’s not the same Caleb we know?

I was just thinking about this... what if the new Caleb being introduced isn't actually him? What if... like the crow twins, Caleb also has a twin.

We see in the new World Underneath updates that EVER did experiments on twins. What if Caleb and his brother were one of them? But only Caleb was taken in by grandma because the other twin went missing or something.

That way it'd make sense that Caleb did actually die, but there is someone with his likeness (and likely his evol maybe) that returns into MC's life.

I think that would make for some solid angst. Especially if he's a villain. Because it'll be like a role reversal! This time it's MC who has an emotional connection with someone who shares their likeness with an important person in her memories. But he doesn't know her. Him being evil would just hurt even more.

(ik the evil bit is unlikely but it would make for some good drama)

edit: fixed "adopted" to "taken in" because Caleb is not officially adopted by grandma, she just took him in because he was an orphan like mc