C494
In a certain corner of the Spiritual Realm, in a wide area with a grayish-black color, a thick grayish-black fog rose from this area. This was the Boundary River. Although it was called a river, there was no water in sight.
The originally calm Boundary River suddenly became restless. A golden light shot into the sky. A roar sounded out, followed by the appearance of a huge object in the air