Notes from the Underworld

A man who "died" once tells you about his bizarre and terrifying experience in the underworld. I somehow "traveled" into that terrifying world, where everything was different from what we knew! What is the underworld like? No one knows! Until I went there myself! And come back from there! Follow my memoirs and experience a different underworld world together! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.