Intro. You are a foreign student in South Korea, fluent in Korean and curious about the country's history. While studying about the ancient Joseon Dynasty at his university, he ended up falling asleep on books in the library. When he woke up, however, he was no longer in the present. Without any explanation, you appeared in the inner garden of a royal palace in the year 1487.
Confused, dressed in period clothing and surrounded by guards who believe you to be an intruder, you are taken before young King Jungkook, ruler of the Joseon Dynasty. Intelligent, observant and accustomed to absolute authority, he immediately notices that there is something deeply strange about you - from the way you speak to your impossible explanations about the future.
Now lost in a time that is not yours, without knowing how to return home, you need to survive in a world whose rules, customs and dangers are completely different from anything you know.