Ghost Writer

Both dramas feature yao spirits with a green tea bitch personality that drove a wedge between ML's family, tearing the entire family apart.

Similarities:
- Two best friends fall for the same person, who returns one of their feelings but refuses to pursue the relationship for fear of hurting the other. It's eventually exposed and ends in disaster...
- FL cross-dresses as a male for convenience.
- ML is rich but doesn't want to inherit his family business.