Tempest of the Stellar War

In a distant future, the empires of mankind span the galaxy, and glorious Earth has devolved into a peripheral backwater.
In Shanjing city in the Asian region, Wang Zheng’s dreams of becoming a mech pilot are crushed when his college entrance exam genetic score turns out a pathetic twenty eight, barely above an animal.
To make things worse, people get the impression he attempted suicide after being rejected by the campus beauty.
Then the closest thing to a family he has, the old man in the book store across the road, goes missing, leaving him only a mysterious birthday present.