The Mythology Behind Hell's Paradise: Jigokuraku

In episode 3, Gabimaru refers to the Elixir of Life by a different name: "Tokijiku no Kagunomi", invoking the mythology behind Jigokuraku.

Hell's Paradise: Jigokuraku, Volume 7 - The Japan Foundation - OverDrive

Yamada Asaemon Tenza, Jigokuraku Wiki

Hell's Paradise: Jigokuraku — The Significance of Nurugai

ARC Review: Hell's Paradise: Jigokuraku, Vol. 4 by Yuji Kaku

Shonen Jump on X: Hell's Paradise: Jigokuraku—Side Story: Forest of Misfortune. Gabimaru learns that cultivating life might be a little more difficult than killing! Read it FREE from the official source!

ARC Review: Hell's Paradise: Jigokuraku, Vol. 5 by Yuji Kaku

Hells Paradise: Jigokuraku Manga Volume 13

Where to start Hell's Paradise - Jigokuraku manga after the anime? Explained

Hell's Paradise: Jigokuraku (Manga) - TV Tropes

Hell's Paradise: Jigokuraku – What Are The Soshin?

Hell's Paradise Volume 8 Review - But Why Tho?