The main plot revolves around a kingdom located on an unknown island in the midst of the four oceans. Everything was going smoothly until the day it was attacked by a demonic army, who used Sodomy as their weapon of choice. Consequently, the Prince of the kingdom was captured by the Devil King. However, the Prince managed to employ his last bit of energy to cast a spell that transported the island to another world. This made it invisible to the world, preventing further damage. The story follows the Prince's two main protectors- his trusted bodyguard and his apprentice. Together, they go on a perilous journey to save the kingdom, defeat the demons and rescue the Prince. The battle won't be a cakewalk, as the demons are always ready for a fight.
In Volume 1's extra section, Suehirouhji Kaneo, the successor of an aristocratic family, enrolls in a public school. However, his real reason for doing so is to humiliate the teachers by tricking them into kissing him, which leads to them losing their jobs. Will Kaneo-sama be successful in his malicious endeavor once again, or will the new teacher be immune to his charm?