4. Save Ringgo

Ro-um uses all the ways to win Myung-hoon's insurance money that is worth 400 million won. Yo-han pays a surprise visit at Moo-young's place, and Moo-young covers up for Ro-um who was hiding there. Meanwhile, Ringgo gets kidnapped by a voice phishing ring, and Ro-um comes up with a way to save Ringgo.