I Am a Saiyan Without Any Powers

(No system + doomsday + time travel) Introduction: Three hundred years later, the earth has long been reduced to a wasteland ravaged by radiation. Mutated beasts are rampant in the ruins. Human beings are struggling to survive by awakening their powers. Li Yun woke up from a strange thunderstorm and found that he had become the most out of place "defective" in this apocalyptic world - he had no superpowers, but when he was about to die, he burst out with the power to tear apart mutant beasts. Half of the blood-stained experimental diary revealed the cruel truth: The blood of the Saiyans, the fighting nation of the universe, sleeps in his body, but due to the incomplete genetic sequence, he has become an unstable factor that can be "eradicated" at any time. The mysterious hunters with "S"-shaped tattoos on their necks, the "Black Mang" organization entrenched in the wasteland, and the dusty secrets of the stable cabin in Vault 73... All pushed him into the center of the storm. Radiation burns in the blood vessels, and the strength of the blood vessels becomes stronger and weaker. Every outbreak is accompanied by the risk of losing control. Li Yun must walk between the fangs of mutated beasts and the suspicion of humans, while searching for inhibitors to suppress the rampage of blood while piecing together his secret connection with the "catastrophe" three hundred years ago.