Halfway through the Ninja World War, the five major nations discovered that their military rations, kunai, and detonating charms were all out of stock. In the inconspicuous Wanshiwu on the corner of Konoha Village, Song Yu crossed his legs and posted a notice: Accepting agents, accepting agents, and also accepting movie-level heads.
When others make balls, he makes nuclear bombs; when others practice physical skills, he clicks on the technology tree. When Uchiha Madara drove his full Susanoo to level the battlefield, Song Yu's rune technology mecha fell from the sky, and its chakra engine roared to life.
From selling instant noodles to arms monopoly, from running errands as a genin to being the richest man in the ninja world, when Otsutsuki Kaguya was also brought in to be the waitress, the five great shadows finally knelt down and begged him to start work - Boss Song snapped his fingers: "Recharge first, then do things."
