Marie starts her own investigation, visiting nearby hospitals in search of clues about her biological father. Meanwhile, Suk-hee's resentment toward Si-ra, rooted in her belief that Si-ra is trying to take Poong-ju away from her, continues to simmer. Sensing an opportunity, Eun-kyung sets a subtle plan in motion, drawing Suk-hee closer and inviting her into her place, where the two meet Si-ra.
