Avengers Social Club

Features three women from different walks of life coming together for revenge: a fish store ajumma who envisioned a better life for herself, a housewife who grew up an orphan, and a chaebol magnate's daughter who was raised like a delicate flower. They're an unlikely trio who would never otherwise meet, but they join forces to carry out their individual revenges. Although they start out as co-conspirators, along the way they become close to one another.
(Source: The live-action ver. synopsis on Wikipedia)

Original Webtoon:
Daum, KakaoPage