Background
Kazu originally served as a mobile gunner in the Japanese Vanguard's armor division, and held the rank of sergeant. However, after multiple acts of insubordination that cost him his unit's respect, he was demoted to cook.
Sometime after the fall of New York City, Kazu passed the "Weller Test" and was identified as one of the few people in the world with gen:LOCK compatibility, and was eventually transferred to the Anvil to join with Rufus Weller and the Experimental Science Unit to further the project, much to the delight of his unit.
gen:LOCK
Arrival at the Anvil
After apparently sleeping most of the way there, Kazu arrives at the Anvil with Cameron MacCloud, Valentina Romanyszyn and Rob Sinclair, where the group is greeted by Doctor Weller, his robotic assistant Caliban and the first two gen:LOCK recruits: Julian and Yasamin Madrani. Kazu complains about Caliban's rough handling of his guitar, and bemoans the long journey he has taken when it is revealed there is no guarantee he will stay. Afterwards, he is taken into the Anvil.
Later, the team suits up in their new combat suits, during which Kazu complains about the tightness of his, they are taken to a waiting room where. After a short period of time, personnel suddenly burst into the room with intent to arrest Rob, who has been replaced by a Union spy. The spy quickly dispatches the personnel with Nanotech and makes to escape. Kazu attempts to stop him by leaping after him with the combat suit's enhanced strength, but ends up slamming into a wall, briefly incapacitating him. After recovering, Kazu and the others follow the spy to Doctor Weller's work space, just in time to see the spy unsuccessfully attempt to upload into a Holon, dying in the process.