What kind of space is this?

Lin Fenglin and Lin long are confused by such a sudden change. There is a bloody world around them. There is no gray or any other color, as if this is hell

"what's going on?" Lin Fenglin looked around and felt the infinite stillness coming from the space. His voice was a little shaky.

no matter who enters this space suddenly, and there is a chill of dead air everywhere. It's just like entering the ice and frost, and even the voice will tremble unnaturally

Lin long shakes his whole body for a while, and his eyes are slightly sad. "What the hell is...