Seoyeon had already played "Jin Yeonseo" in Hyper Action Star. Of course, back then, the character was named "Yeohwa."
But the current "Yeonseo" was different from "Yeohwa."
Not because the character traits had changed, but because the context had.
"Yeonseo grew up in a laboratory, never having the chance to interact properly with people."
Perhaps because she was a test subject, she had never learned the emotions most people pick up naturally.
That was precisely her current state.
"In a way, she’s similar to me."