My Royal Nemesis (2026 Korean Drama)

Crown Prince Lee Hwi is a cold, meticulous ruler-in-waiting who trusts no one. His life is disrupted by Hong Seol, a "eunuch" with unmatched tactical brilliance who constantly challenges his authority. As they navigate deadly palace conspiracies and assassination attempts, their intellectual rivalry turns into a dangerous attraction that threatens to topple the Joseon hierarchy and expose their deepest secrets.