At some point, the Ka virus invaded, Adala spawned in large numbers, and the continent was lifeless. Only? Capital, protected by countless people, has become the only place on the continent where one can live with peace of mind. Kavirus patients will die within ten days due to accelerated aging of organs and accelerated cell lesions. However, patients with the Kao virus have a one in 10,000 chance of being reborn with supernatural powers after death. As a result, a supernatural organization, the "Brave", was created specifically to destroy Adala. Mu Ai, who witnessed Adala tearing up his relatives with his own eyes, took the risk...