"I'm thinking that Kaido is based on the "Beast" in the Book of Revelation, especially because he may have a religious theme. His name can be translated as "church, chapel, tabernacle, and synagogue."
And the Old Lady that lives on Kaido's favorite island, has a cross in her drawer."
http://img.batoto.net/comics/2012/12/30/o/read50e02c2685ff9/img000001.png
Bien vu je trouve 
À garder de coté la théorie 