Yu Zhangxun is the king, the king of blue.
Kagudu revealed that he was the king, the red king.
However, for Yu Zhangxun, Kagudu Xuanshi is not only the Red King, but also a trap king that gives him a headache!
PS: The author has only read the anime, and the comics and novels are just floating clouds. OOC characters are commonplace, and unreliable settings are commonplace. I was already prepared to be slapped in the face by the authorities.
PSS: Due to learning factors, the weekly update limit is not guaranteed.
Above.