In the vast continent of Egros, a huge variety of races existed. Through the years Kingdoms and Empires appeared one after another and waged endless wars. Each century, special types of demons are summoned in an altar and are given preferential treatment in a certain society because of their above average power and innate skills. Being summoned in this world as one of these demons after passing away from his previous life, Chris could not help but praise his luck. Though everything seemed to be going his way, does it really?