Evolution of All Things: I Gain Immortality by Fixing Stuff

After his parents died in an accident, Lu Chen returned to his hometown and took over the repair shop they had left behind. But fate had more in store for him: he was diagnosed with terminal lung cancer. In the fiercely competitive provincial capital, he seemed to face nothing but a dead end and the grim prospect of being stripped of everything he owned. Just as Lu Chen prepared to accept his fate, he suddenly activated the Evolution of All Things System. Any item brought to his shop for repairs could be evolved by the System. "Item: vintage vacuum-tube radio." "Available evolution paths: single-cassette integrated circuit recorder-player; dual-cassette stereo recorder." "Item: mechanical pocket watch." "Available evolution paths: shock-resistant version of the original pocket watch; pocket watch with a calendar and luminous dial." Lifespan +50 days... Lifespan +108 days... Lifespan +79 days... As his lifespan kept increasing and the items he evolved became more and more advanced, Lu Chen began to feel that something was wrong. His lifespan had already surpassed fifty thousand days. He could live for more than a hundred years... As the wheels of history rolled on, Lu Chen witnessed the changing times while his face remained unchanged. At last, he realized that if he kept going like this, he might become immortal.