Xu Jingming transmigrates into a world where ferocious beasts run rampant, awakening only an E-rank weak electricity ability that seems practically useless. He is on the verge of being eliminated from the superpower entrance examination. At the critical moment, the Deep Blue System activates and grants him the top-tier S-rank Purple Heaven Divine Thunder. During the examination, he overwhelms the genius Zhou Mingyang. When his opponent unleashes ferocious beasts to attack, Xu Jingming summons his divine thunder and astonishes the entire audience, securing first place in Jiangnan Province's superpower examination and thoroughly humiliating everyone who mocked him. Prestigious universities compete to recruit him, but he chooses the Magic City Superpower Military Academy, where he continues to grow stronger by hunting ferocious beasts. During an outdoor training mission, he is surrounded by foreign enemies and an evil cult. His divine thunder evolves into SS-rank Dutian Divine Thunder, shocking even grandmasters. With his formidable trump card, he rises to become one of humanity's strongest protectors.