Summoning;
At the time of death, great justices, uncovered lies, or conquered disorder, he is always there. At the time in which karma moves itself in ways of illness and tragedy, he is always there. You need only speak his name.
To summon Enma from a state in which these conditions do not apply, death must be presented.
This sacrifice can be as small or as large as desired as long as it is of equal value of the reason for summoning.