4 Legendary Witches[1] (Korean: 전설의 마녀; Hanja: 傳說의 魔女; RR: Jeonseorui Manyeo; lit.

Orphan Moon Soo-in marries Ma Do-hyun, the eldest son of the chaebol family who owns bakery corporation Shinhwa Group.

But when Do-hyun dies unexpectedly, the Ma family makes Soo-in take the fall for their illegal business practices and she ends up in jail for stock manipulation that she did not commit.

The four women bond and become friends, particularly when they join the baking classes being taught by Nam Woo-suk, a hotel chef.

At his father-in-law's suggestion, he became a volunteer at the local prison's vocational training center, where he meets Soo-in and begins to fall for her.