Far in the future, in a distant colony planet, humans have restarted civilization with the help of the Evolution System. Unfortunately, everything was lost due to the Great War - a war that raged on for a hundred years, leaving behind only 3 million survivors and the entire New World infested with the Undead. *** "The military only has one role: to eliminate the Undead. However, some threats are too difficult, too mysterious, or just too weird to be dealt with by the military. And that's where the Special Forces Squadrons come in - we're the best of the best, both in terms of combat and utility. But the Frogmen Unit - the one you'll soon belong to - specializes in reconnaissance, infiltration, and, most importantly, assassination operations. After all, our targets are not limited to the Undead. That is why secrecy is of the utmost importance - the moment you join, all your records will be erased from history, you will no longer have a name nor face, and your single purpose will be to become a replaceable weapon. Got all that, rookie?" Pvt. Victor "Snake Eater" Kayne nodded. "Yes, sir. Sir, I'd like to report. As a result of my Initiation Mission, I believe I have turned into an Undead." ***