About My Adventures in the World of Machine Combat

My name is Beiyu, and I am an otaku. I once imagined that I could enter the world of machine warfare and have adventures. I know it's an idea, but... Why would I really enter the world of machine combat? There is an artificial intelligence that calls itself "Sai" and claims to provide me with the most comprehensive services... What the hell... I'm going to have an adventure This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.