Summer Job? You Became an Interstellar Mercenary?

Lin Xiao just wanted to make some quick cash over summer break. Instead, he got drafted into an alien mercenary corps fighting on the frontlines of an interstellar war! Surrounded by roaring insectoids, shattered mechs, and battle-hardened soldiers under crimson skies, this college freshman must fight for survival across alien wastelands. Two months later, his tactical brilliance earns him a shocking promotion to Legion Commander—but there's just one problem: school starts next week, and he's got tuition to worry about.