Curse Technique: Eleven Nights of Sorrow

After seeing that he couldn't utilize the due to his lack of Jashin's Blessing (immortality), Engi discovered a different ritual for sacrificing souls in the Book of Ten Prophecies. The Curse Technique: Eleven Nights of Sorrow (呪術・十一連夜の悲哀, Jujutsu: Juuichi no Hiai) is a special jujutsu that summons the eleven Imoshinai (居もしない; lit. "Invisibles"), the spirits under direct control of Jashin, the Wicked Heart.

Usage
First, it is necessary that the user has a strong faith in Jashin, otherwise, a proper connection between the user and the World of Spirits (魔界, Makai) will fail to be established. Afterwards, the Wicked God's symbol must be drawn into the ground around the user. Once that step is complete, the user must sync their spirituality with Naraku (奈落, Eternity), a layer of the World of Spirits, as well as the domain of Jashin and his subordinates. There, the user must feel a certain rhythm of one of the Imoshinai they wish to spawn. Each Imoshinai has a different aura that they emit. While it is possible to summon all eleven Imoshinai, doing so requires much more time and focus. For a skilled practitioner of the jujutsu, summoning Imoshinai would be as simple as summoning a. Engi has perfected the technique enough to summon at least three Imoshinai at once.

Jihibiki
Jihibiki (地響き, Jihibiki)...

Otamajakushi
Otamajakushi (御玉杓子, Otamajakushi)...

Yōjutsusha
More to come..