Lolo

This is the ability to, without exception and without permitting any resistance, end the life of any living being, whether it be human or youkai. The only kind of creatures immune from this are Hourai Immortals. Clearly and simply, it is an unusually and dreadfully powerful ability. Although this ability is what drove her to commit suicide and become a ghost, it seems that she hasn't forgotten this ability since then, and it seems that she can use this ability in a carefree manner (though she doesn't act carelessly in the usage of this ability). However, whether she's able to end life only to the extent of fainting, or if she invites one to death gently, is unclear. During her lifetime, the latter was true. Her Last Word "Saigyouji Flawless Nirvana" is said to be the very incarnation of this ability. This is the ability that enables her to manipulate ghosts and spirits, an ability she possessed even while she was alive. Although it's unclear what one is exactly able to accomplish with this ability, it seems to place Yuyuko on the role of the manager of the ghosts who stay for a while in the Netherworld. Because of this ability, she is able to let those from Hellstay eternally in the Netherworld.
 * Manipulating death
 * Manipulating departed souls