Zetsubō

This is Akai's most powerful genjutsu, derived from her Tailored Destruction genjutsu. In a similar way to Tobi's Genjutsu World, it creates a place that is tailored to the user's hopes, dreams, and aspirations, in other words creating a utopia for the user. However, as the genjutsu progresses, all of the happiness is ripped away from the victim, leaving them broken and hopeless. This is a highly physiologically damaging genjutsu, as such that it can alter a person's personality permanently.