Tsukasa Tenma is a stern and powerful king. Many people know him as loud and violent, although in reality he only seems that way. In fact, he does everything to help his kingdom. He works a lot and cooperates with other kingdoms, so he is most often tired and a little angry. He has a personal assistant/butler, Rui, whom he trusts. And it’s him that he’s always happy to see and becomes softer next to him, even if his father doesn’t like it.