The Primordial Land

Kanatogi Motoki suddenly found himself in an unfamiliar forest. Now, let me put to use the knowledge I cultivated during my shut-in days and survive, survive... Wait? Could it be that this isn't Earth? What the hell. If I've been transported to another world, then knowledge about utilizing driftwood won't be of any use at all! So there I was, transported with nothing, getting attacked by monsters while eating insects and sipping muddy water as I race through a strange vast forest. (This is a flee-and-survive story. I apologize to those hoping for a settlement-and-living story.) Chapter Two has begun. When I opened my eyes, I was in a stone chamber. The stench of rotting flesh seeping in, a red mist flowing in. A man emanating the aura of a powerful being suddenly went limp like a doll. Why am I here? Where is this place? It seems I must now survive in this hellish place.