Seeking Immortality, Searching for Home

How many life-bearing planets are there in the vast, boundless universe? Zhang Chen, an ordinary man on Earth, spends his days working a routine job. But an accident changes the course of his life. After a car crash, he wakes to find himself on a strange planet, occupying the body of a young boy. A mysterious world he has never known slowly unfolds before him, while the flame of hope that he might one day return home never goes out.