Kurokami: The Animation - Volume 4
There is a fact unknown to most people in the world known as the Doppeliner System. It controls the destinies of every person living in this world by splitting the amount of luck or life energy called "Tera" of an individual between three identical beings, Of these three, the one who possesses the most amount of Tera is called the Root and the two others with less are called the Sub. Should these people ever meet, the one with the lesser amount of Tera would die and the Root would absorb their Tera. When only the Root remains alive, they become a Master Root and gain an enormous amount of luck and lead a life with success at every turn. The Doppeliner System maintains what is known as the "Coexistence Equilibrium" and is overseen by a powerful race of beings called the Tera Guardians. This is a tale of battle that began with the meeting between a human boy named Keita and a young Tera Guardian girl named Kuro . . .
Six months have passed since the battle against Reishin in Okinawa. Keita has been in a comatose state since then while the world changed around him. Kuraki has become the new vice-chairman of the Kaionji conglomerate and set to fulfill his dream of forming a Utopia by manipulating the Doppeliner System. A band of Tera Guardians and supports have risen around Kuro to fight against this new enemy in a strange new world . . .