The Lives Of Tao by Wesley Chu

In a world where an ancient alien race, the Quasing, has been secretly influencing human history, an unassuming IT technician named Roen Tan becomes an unlikely hero when he is unwillingly bonded with Tao, a Quasing who has been guiding humanity for centuries. As Roen navigates his new reality, he is thrust into a covert war between two factions of Quasing, the Prophus and the Genjix, each with their own vision for humanity's future. With Tao's guidance, Roen must transform from a couch potato into a skilled operative, balancing his mundane life with the high-stakes mission to save the world from the brink of destruction.

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