In the Great Expanse, amongst a sea of stars lies Devatis. Devatis is a treacherous world riddled with wild beasts, uneven terrain and a dangerous populous. Devatis is littered with cities of great magnitude called "Citadels." These Citadels remain as beacons, towering above the lands and possess technology far surpassing that of regular human colonies. In these cities roam modern Knights, who hold a title of Devatis's most skilled warriors. The greatest citadel in magnificence is Atlas, the first and most technologically advanced. However, the heart of this enormous city is corrupted by the mysterious figure only known as "Mr. Lupin" who has his roots firmly planted into nearly Of all Atlas. The only person opposing this figure is a lone vigilante by the name of 'Volts'

Operation Snow is a freelancer task force aiming to take down crime in Bolivia. However this team slowly goes into a hell hole and takes a turn for the worst. "Trust nobody. Everyone is either a threat or doesn't have what it takes to live."