In a Class of Her Own (2020)

Both dramas are about a girl cross-dressing and who ends up going to a male-only school.
Both period dramas

Both FLs are the daughter of a man wrongfully accused and executed, and both assume a false identity and become swept up into some pretense regarding gender (marriage to a girl pretending to be a boy vs. attending school disguised as a boy).

This is similar in terms of the FL dressing up as a man to discover the truth about the massacre of her family. The FL is also smart like Wen Xi. The cast are all goodlooking as well