Metal Goddess Soldier

Earth has run out of resources. In desperation, humans begin migrating to other planets. To prepare for resource wars, each country has organized and equipped its own space force. By the end of the 22nd century, humans have colonized tens of millions of other planets, with conflict and violence on the rise. Mu Siyun, an unemployed graduate, is on his phone while eating when he accidentally sends his resume to the Beiyang Fleet and then ends up becoming a team leader...

Original Manhua