Our protagonist Kai has his mother taken away from him at a young age, an act apparently committed by demons. Now, 7 years on, Kai embarks on a new adventure as he begins the new school year at the esteemed Zion Academy in the kingdom of Nirvania, where adventures await him in a world embroiled in tensions which is full of surprises and mysteries at the same time.

A month has passed since Night Wing's incursion on the capital of Nirvania, Nirvana. However, that isn't the end of Nirvania's problems, with war against its warmongering neighbour, Miran looking ever more likely than before. To make matters worse, tensions have been stoked between the Sylph Kingdom and Nirvania by the Chaos Legion, the true enemies hiding in the darkness, opening the possibility to a war on 2 fronts.

Kai may only be a 2nd Year student at Zion Academy, but the raging storms of this chaotic era spare no one, especially given his close ties to Adeline, the Sylph Princess. Can Kai circumvent the tides of chaos and live to see the end of what is likely to be a 3rd Holy War? Will Nirvania stand strong against its foes, or crumble and be washed away by the sands of time?

2 years had passed since the conclusion of the 3rd Holy War, which was achieved by the combined efforts of the Nirvanian Army, the 10 Saints and Kai's team, which have been affectionately known thereafter as the Rising 8; a group of rapidly rising youths revered as national heroes for their contributions in putting an end to the 3rd Holy War. Moreover, relations between all 4 Kingdoms on the Central Continent, namely Nirvania, Miran, Cameron and the Sylph Kingdom, have reached unprecedented heights, ushering an age of peace.

However, danger lies ever closer, with the Chaos Legion staying low over the past 2 years, awaiting the perfect opportunity to rear its ugly head. Even though Kai had trained hard over the past 2 years to master both his demonic and Sylph ancestry, when the battle has evolved from between mortals to that of the seemingly immortal Chaos Generals, can Kai and his fellow Nirvanians rise above the odds with their allies and vanquish the chaos?