Struggling to get by, Han Jeong-suk embarks on a risqué business venture, despite her fears; she soon faces her first challenge: a sales presentation.

After a hard revelation, Jeong-suk returns to the grind, diving into her products; with renewed energy, she gives sales another try.

In order to level up their business, the four ladies begin conducting surveys around town, facing stigma and embarrassment from the locals.

Kwon Seong-su defiantly returns to town, showing no remorse in front of Jeong-suk; Kim Do-hyeon delves into a mysterious old case.