Zero-Sum Protocol (English)

​In a world shrouded by anomalies at every turn, survival is a non-negotiable price. ​Raka and Rina, two siblings forging a name for themselves, work to build their reputation as a Tracer duo—just to scrape together enough money for tomorrow's rent in the sprawling megacity of New Antasena. ​Little do they know just how fragile their "normal" days truly are. Alongside them are their two loyal spirits, Eizo and Piko, who will accompany them on a journey toward whatever haven awaits in this uncertain world. ​Will they manage to hold onto their normal lives, or will they plunge into the abyss of the unknown?