When Japan faces a catastrophic volcanic eruption, high school student Kusou Saiki steps up with his psychic abilities to avert the disaster. Amidst saving the world and observing his friends' dreams, Saiki decides to halt the eruption and ensure the planet's safety. Yet, this seemingly simple mission proves to be a daunting feat for even the most potent psychic, especially when coupled with the mischievous antics of his eccentric friends.