Cain von Silford was reincarnated as the son of an aristocrat and given immense power and divine protection by mischievous gods. From the founding king of the kingdom, Cain learned of the evil god Aaron, and undertook training to cultivate the skills to defeat him. After returning to his everyday life, one day he wishes for more power and uses summoning magic. A presence appears that calls itself The Prince of Darkness. What crisis does Cain face now?!