C.S.O.

The story focuses on Kuro Kanata. From the surface, he looks like an ordinary human, but he is actually a rare existence called a God Slayer.

The God Slayer has the task of protecting the world from Fallen Gods that can appear at any time.

Even so, he was still an ordinary school student who was not yet required to fight. It was during his school days that he started playing: The world’s most popular VR game, Celestial Soul Online.

In that world he not only experienced an extraordinary adventure, but he also married 3 people at once.

How is his life after learning that the game world, is not an artificial world, but a parallel world that exists in legends?