Made famous by the decisive battle waged upon it during the War of Humanity, the nearby plane of Nishnatoba had been popularised in modern times by combatants and warriors alike, as it is one and the same with the interior battleground of the Matsuhama Arena. Likely chosen for its relatively unique ability to revive those that have fallen within it, its restricted, non-looping geography suggests that only a small part of the plane was utilized for mortal purposes.