Fallen Star Remains

On the day the star fell, a swarm of meteorites code-named "Skeleton" hit the earth. The cosmic virus "bone-eroding medium" has swept across the world. All carbon-based organisms mutated violently, devoured metals and minerals, and evolved into indescribable monsters. Humanity retreated to the seven steel city-states. Outside the city walls, everything was scorched earth. Viruses are ineffective against 99.99% Of humans. The one in 10,000 infected are called "qualified ones" - they do not become monsters, but the abilities they gain come with the cost of physical failure. Every time you use the power of the silver seal, money is deducted from your life balance. Lin Mo is the only exception. 18 Years old, mental strength 118, 2 points short of the passing mark for driving a mecha. An orphan who grew up in a repair shop was judged to be "disqualified", but due to a shortage of people on the front line, he was temporarily recruited into the army. There was a very faint silver mark hidden on his left forearm, so faint that he thought it was a birthmark. He doesn't know that he is the only perfect symbiote on earth - the virus has no side effects in his body and his abilities can grow infinitely. He only knew that his mental power would always be "blocked" during the test, as if something was occupying the passage and refused to let go. He obtained an ether bracelet from an ancient ruin deep in the wasteland - it can decompose matter into energy and then reshape energy into matter. This bracelet activated a preset command when it recognized its owner: "The third visitor has passed the authentication. Waiting for the return coordinates to be confirmed." He couldn't understand this half of the sentence. The federal military is secretly promoting the "Sacred Blood Project" - using qualified virus strains to create genetic medicines. This potion allows ordinary people to gain the power of the Silver Seal at the cost of a lifespan of no more than