Fifteen years ago, Kaelen, the legendary War God, repelled a giant invasion but lost his family and his powers in the process. Bound by a promise to his dying mother, he disguised himself as a lowly janitor at the Storm Academy to protect his sister, Freya. Now, the Giant King is set to return with a vengeance. As the countdown to Kaelen's power restoration hits its final day, Freya unknowingly signs up for a suicide mission against the giants. Caught between his vow of secrecy and the need to protect his only remaining kin, Kaelen must decide when to reveal his true identity. Will the Hidden War God rise again to save humanity once more?
