Spin-off of K-drama/series Strong Woman Do Bong Soon. It's a story of a daughter, mother, and grandmother with superhuman strength who get entangled in a drug case. Same as its original series that make pun from the lead character Do Bong-soon who is from Dobong district, now the story of Gang Nam-soon is around Gangnam district.

• Lee You-mi
• Kim Jung-eun
• Kim Hae-sook
• Ong Seong-wu
• Byeon Woo-seok
• Lee Seung-joon
• Kim Ki-doo
• Han Sang-jo