"How exciting! Soon, my game will begin." For over a hundred decades, war between angels and demons stopped. Making the two races to live in harmony-temporarily. The peace of both realm were destroyed however, by the Divine Legion. An organization consisting of divine beings. The reason is unknown. All that they know is that the next war will be coming soon. But not just between the both, several races will come to fight too. The next war will be unlike the previous ones. Now, it will be a war of dimensions where each realm will destroy the others. For glory and fame, for power and wealth.

The present year, 2036. A high school freshman, Rivals Miyogi was invited to enroll in JINN University. An institution that only the best students are allowed to enroll. Not knowing the secrets behind the place where the school is built and where his ancestor received the power that can destroy the whole world when used by the wrong hands. Now, it's his time to shine as the new king of demons replacing his father who managed to won hundreds of wars from each dimensions our creator made..