In between being a hero and searching for a way to get to Saber, Shirou Emiya got a job as a technician at Chaldeas Security Organization. What is not to like? Very good pay, help save the world, and use his abilities as both a repairman and a magus. It has all the advantages he could want. Too bad his Spiritron Dive ability is too low to be a Master while others fight in Fuyuki.