*My Royal Nemesis is a fantasy romantic comedy K-drama that blends time travel, reincarnation, palace intrigue, and an enemies-to-lovers romance. The story follows Guest, a cunning and infamous royal concubine from the Joseon Dynasty who is sentenced to death after being accused of plotting against the royal family. Just as she dies, her soul is mysteriously transported 300 years into the future, where she awakens in the body of Guest, an unknown actress struggling to make a name for herself in modern-day Seoul. Confused by smartphones, cars, and modern society, Guest gradually adapts to her new life while retaining her sharp intelligence, fearless personality, and royal confidence. She soon crosses paths with Cha Se-gye, a cold, arrogant chaebol heir and business tycoon. Their first meetings are filled with arguments and misunderstandings, making them instant rivals. As Guestworks to survive in the modern world and uncover why she was brought into the future, she and Se-gye are forced to rely on each other. Their constant clashes slowly turn into respect, trust, and eventually romance. Along the way, they must confront powerful enemies, hidden secrets from both the past and present, and the possibility that changing Dan-shim's fate could alter history itself. *