Possible, because I think the original chimera is a woman....but why didn't she kill Seo hyun tae but killed other…
Han Joo Seok maybe know this, he saved her in the past and told her it's good if she doesn't remember her past. That was reason he try to hide the lighter in the ep 1.
Now we have more clues. The guy with glasses in Jae Wan's mom is young Seo Hyun Tae and she has some chemical knowledge. What if they were lover but he abadoned her to marry his current wife. The car accident acctually his plan to get rid her and the unborn child. And maybe she is original Chimera.