In a world where the coveted Peace Keeper weapon entices creatures with its immense power, Waku, a mysterious thief, becomes the target of a relentless group of monsters. Desperate to escape their clutches, Waku flees to the human realm but inadvertently brings destruction upon a nearby amusement park where 17-year-old Kyle Collins and his terminally ill little brother find themselves. As tragedy strikes and the monsters claim the life of Kyle's brother, Waku, now stranded on Earth, implores Kyle for assistance in locating the remaining nine stones. Together, they must confront the pursuing monsters and embark on a quest to find the Life Stone, hoping to revive Kyle's beloved sibling. Amidst the chaos and sorrow, an unlikely alliance is forged as Kyle and Waku unite to vanquish their adversaries and unlock the key to a second chance at life.