Cheng Yan travels through time, only to end up becoming an honorable prince in the Middle Ages of Europe. Yet this world was not quite as simple as he thought. Witches with magical powers abound, and fearsome wars between churches and kingdoms rage throughout the land. Roland, a prince regarded as hopeless by his own father and assigned to the worst fief, spends his time developing a poor and backward town into a strong and modern city, while fighting against his siblings for the throne and absolute control over the kingdom. Join Roland as he befriends and allies with witches and, through fighting and even farming, pushes back invaders from the realm of evil.
Roland was too overwhelmed by the swell of emotions to develop an immediate response. He wanted to reproach her for risking her own life, but his words, which were about to come out, finally yielded to a look of resignation when he saw Nightingale's beaming smile.
In the end, he patted her on the back and said, "Be more careful next time."
Nightingale nodded and then shook her head. She whispered to him in a voice that nobody but he could hear, "Unlike Anna, I can't convert those drawings to physical entities... This is the only thing that I can do for you." She then paused for a moment and went on, "But please don't worry. My top priority is to protect you... and stand by your side. I won't recklessly put myself in a dangerous situation."
Nightingale flushed at her own bluntness. Although her voice kind of trailed off in the middle, Roland still clearly heard the word "you".