everyone though Rui was the evil and unpleasant king of the dark kingdom because it was written that way everywhere. Tsukasa, on the other hand, was a knight who loved to face such people

white kingdom decided to send Tsukasa on a mission to kill Rui so that he would no longer arouse fear anywhere.

but when the knight finally met villian, he didn't expect what he saw

"Oh my dear.. I want someone who will listen to me and love me!" Rui said desperately, he was talking with his raven