Calvin is a clever and likeable child. One day, in a little baseball game held in Rashid, Calvin traveled through a tunnel through time and space under his feet to the medieval dynasty of Carmord. It turned out that the king of Yasser had lost his former power, and the evil Lord Belasque had planned the throne for a long time, and it was the Maureen gods who brought Calvin here as a knight to save Camorod. The arrival of Calvin was regarded by Lord Belasque as an obstacle to his taking the throne. After several failed attempts to get rid of Calvin, Lord Belasque sent people to kidnap the second Princess Cather, who gradually became fond of Calvin. And used this to intimidate King Arthur to marry Princess Sarah. The Kane samurai in the palace is the lover of Princess Sarah, and she hopes to select the husband who can really succeed to the throne in the great contest in the palace. After this disaster, King Arthur not only saw Lord Belasque's ugly face, but also regained his former power, and he agreed to Princess Sarah's request for a match. The match began, and after Kane was injured, Calvin defeated Lord Belasque in his place. After completing the mission of saving Carmorde, Calvin returned with the help of the Maureen gods.