So He Became the Light

2022, Kyoto. High school student Toru Sasahara, a seemingly ordinary boy with extraordinary abilities, encounters the Evolutionary Truster, an inheritance from an alien planet, in an abandoned sports equipment room due to a mysterious chase. The moment he held the instrument that emitted blue light, shattered visions of the future rushed into his mind: the burning city, the roaring giant of light, and his own figure fighting alone. The peaceful daily routine was shattered. Alien beasts from the star sea descend on the city, bringing despair and destruction. While everyone was running away, Toru Sasahara chose to face his fear and raised his light—— "I'm... Ready!" He transformed into the silver and red giant of light, Ultraman Nexus, and fought to protect him. However, the battle is over, and the crisis is not far away. The cells of the alien beasts are lurking quietly, the mysterious man in black is like an enemy and a friend, and the eyes of classmate Hitoyuki Yamashita are becoming more and more complicated... And behind all this is the fate that he must bear alone, and the gradual awakening of the true power that belongs to the "fittest". When darkness falls again, can he inherit the will of light, connect people, and protect the world he loves? The intersection of light and shadow, the story of the boy and the giant, begins here——