The Prince and His Mischievous One

Lenka Normanster was betrayed by his childhood playmate Jane Grey soon after he took the throne and became the shortest-lived king of the empire. Fortunately, God cares for every living being, he was sent to the year when he was six years old. Given a second chance, Lenka was determined to stay away from that terrible guy this time to save his own life! ...What he didn't expect was that the relationship between them would become even closer?!