The Last Human. The Memoirs of Michael Zane, #1

After a catastrophic alien invasion led by the brutal Saluki Inu, humanity is all but extinct. Michael Zane-former slacker, reluctant hero, and the last known human survivor-emerges from the ashes of a dying world to lead a resistance buried deep underground. Haunted by loss and driven by purpose, Michael joins forces with rebels, outcasts, and unexpected allies-including a ghostly girl, a rogue alien warrior, and a mysterious strategist from a forgotten moon.
As the Saluki tighten their grip and ancient alien technologies awaken, Michael must uncover buried truths, ignite a shattered world's last hope, and become something more than human. The war for Earth was just the beginning.