Infinity Heart
From each Apocalyptic Star that formed the constellation inside their bodies, a pillar of blood vitality and Astral Origin emerged and gathered between the Elemental Chaos Heart and Bloodline Heart.
The first, second, and third Apocalyptic Stars were only responsible for fueling the Infinity Heart creation. The Yang Apocalyptic Star and Yin Apocalyptic Star were the ones responsible for giving its structure and forming the matrix of the divine artifact.
Yin and yang, negative and positive, electron and proton. The infinite duality gave birth to the five elements, the celestial bodies, and the fundamental aspect of all matter.
Each Neo-Demon must use that infinite duality that resided now inside their bodies thanks to the Apocalyptic Stars sealed in their hearts and brains to form the Infinity Heart.