How Can I Become a Chinese Sword Immortal with a Sword at the Beginning?

(Invincible, not aggrieved, single woman, fusion of all realms, system, strong when encountering the strong) Lin Feng traveled back in time to Blue Star for eighteen years. He had just graduated from high school and wanted to earn pocket money by working as a food delivery worker during the summer vacation. Who knew that the spiritual energy of the world would revive? Lin Feng was delivering food when he came to a remote place. But who would have thought that on the way back to the city, he would encounter a terrifying monster and his life would be at risk. [Ding, the noble earth's bloodline has been detected and the omnipotent system has been activated] Lin Feng was overjoyed. After killing the monster, he continued his summer job while looking for traces of the monster in the city. One day, a huge dragon appeared in the East China Sea and tried to flood the city with a tsunami until Lin Feng appeared. "Beast! I will kill you today to collect the reward! No, I will kill you to prove the Dao!" An earth-shattering battle began in the East China Sea. Afterwards, he brushed off his clothes and went away, hiding his merit and fame. But unexpectedly, just when I was about to go to college, the state came to my door. Facing the invasion of various worlds, Lin Feng smiled helplessly. "You're all eyeing Blue Star, right? Then be prepared to become an affiliated small world!"