Both have a lesbian romance that has a lot of mystery and deception involved. They both have a many twists and some darker themes. They are both based on novels. They are both based on novels. They are both pretty sexual.

It takes place in the same time period. It is a female centered series. It has sapphic/queer characters. Hardworking women fighting for what they want.

Jeongnyeon the manwha was inspired by the handmaiden. Especially The main character was drawn to look like the main character in the handmaiden. The lead actor is in both. They are set in the same time. And both feature queer women.