Delta Force's New Operator: Phantom Crow

Xu Jin was an ordinary office drone in the city, but unexpectedly transmigrated into a world based on Delta Force. Before he could figure out what was going on, he acquired a Solo Combat System. Desperate for money, he sold his blood and had a Hafk Relink brain-computer interface implanted, achieving 100% compatibility. He was trained as an assassin by Hafk, using the System to grow stronger. After discovering that Hafk were invaders, he joined the righteous G.T.I.