The Galactic Legend: Guardians of the Galaxy

The protagonist, Long Xiaotian, is an ordinary new recruit in the Galactic Guard. With the worst scores in his unit, he is inevitably assigned to one of the border outposts scattered across the vast galaxy, where he becomes an ordinary sentry.

Everything in this rotten, mold-ridden place seems to be decaying. Long Xiaotian plans to keep his head down until his discharge, then find some job and coast through the rest of his life. But just as he grows used to life in this forgotten corner, two new recruits arrive at the outpost, changing his life. Meanwhile, when he is promoted to non-commissioned officer, a war with the Shenhe Civilization also begins.