Abyss Survival Notes. The protagonist, Sieg, was sent to the Abyss through a "demon trade", reincarnated as an Abyss Worm, and gradually grew into a demon, finally obtaining his own territory. I recommend this fantasy-mystery fantasy novel to you. The story is compact and exciting, full of adventure and exploration, and the characters are very vivid. It is very worth reading. I hope you like this fairy's recommendation. Muah ~😗