Coffin of the Iron Mountain

Coffin of the Iron Mountain (蓋棺鉄囲山) is a Domain Expansion used by Jogo.

Description
The environment created by Jogo's Domain Expansion takes the form of the inside of an active volcano. There is lava everywhere and the temperature is high enough to burn up any normal human upon entry.

As with any Domain Expansion, Iron Coffin Mountain allows of all Jogo's volcanic attacks to hit their mark with much greater explosive ferocity. Jogo first used this technique as a countermeasure to Satoru Gojo's Infinity Cursed Technique.