Acheron

The River Acheron" - Acheron no Kawa.アケローン の 河 (アケローン の か わ) (Akeron Kawa no) in the Acheron flowed rivers of the underworld Phlegethon and Cocytus, the latter as a derivation of the same Styx. In the Hell of Dante's Divine Comedy, the river Acheron is the edge of hell, in the Ante-Inferno.