Tetsu the Sewer Boy
about a mother that dumps a baby boy into the Japanese pit sewer system (it looks like outhouses connected city-wide). He survives and lives down in the sewers. He comments on various perversions he finds down there, and towards the end, he turns rather perverse himself (this goes into scatological territory I'd rather not discuss) and finally meets his mother.
Gyser
perverse
survivor
mischievous
dark humor
scatological
