Asura is one of closed city built by the survivors of a nuclear disaster. Every resident follows the only rule: do not leave the city boundaries. The outside world is empty and dangerous. There is no one living creature out there. Kyrie, the girl, who grew up in Asura, knew about it all of her life. Until one day a boy came to the city straight from the atomic world.

Marco worked all his life as a bartender in a tavern, which he received after the death of his aunt. One day, the calm and peaceful days come to an end, when a stranger appears in town and claiming, that Marco is far from an ordinary tavern owner.