After the Falling Sun

The Red Sun falls, the doomsday comes, the laws of the world begin to collapse, races that have never appeared before begin to attack from outside the sky, demons, angels, dwarves, etc., The resentment between various races, various situations that cannot be escaped, why does the Red Sun fall? Is it a natural disaster or an unimaginable conspiracy? Let's see how an ordinary boy wakes up in adversity and fights and slays demons. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.