The cryptocurrency surges! To celebrate, Da-hae and Eun-sang decide to take Ji-song on a trip. But their sense of freedom from work doesn't last long. Soon, the obsession with crypto drives their journey toward disaster. Meanwhile, Dr. Ham suddenly asks Da-hae, "What are we to each other?" leaving her extremely flustered.

After more than a decade in hiding, Da-hae's father suddenly returns, clutching a crypto mining machine. Not wanting to ruin her mother's upcoming 60th birthday celebration, Da-hae hides the fact that he's back. Meanwhile, Eun-sang crosses paths with her ex-husband, Dong-jun, sparking tension, and Ji-song grows excited thinking about marriage when she hears that Wei Lin is coming to Korea.