Witch's Castle

Oh Dan-Byul lost her parents due to her own mistake. She marries Joon-Young, but her husband passes away.
Meanwhile, her mother-in-law, Ho-Duk, divorces because of her husband's infidelity and her sister-in-law, Se-Sil, returns to South Korea after divorcing her Italian husband.
Now, these three women live together while overcoming their own personal problems and becoming important to each other.