The Priest System

Centuries ago, when faith still had power, priests stood as humanity’s barrier against the chaos of the Yokai, twisted spirits born from hate, regret, and desire. But when the Yokai War began, the balance collapsed. Temples burned, prayers vanished into silence, and Japan’s sacred lands drowned in blood. Now, the world is watched over by a single order, the Seiryō Church, an organization that trains priests to fight Yokai through divine martial systems known as Disciplines. It is said that those who reach the top can touch heaven itself… But few ever return from that climb. Among them is Haruto Kouya, a young priest who once prayed with unshakable faith, until a powerful Yokai slaughtered his family and left him for dead. On that night, as the rain drowned the fires of his home, a cold voice spoke within the void: [THE PRIEST SYSTEM HAS BEEN AWAKENED] [USER: HARUTO KOUYA — SYNC COMPLETE] The Priest System, an ancient, divine mechanism that fuses technology and faith, chose him as its host. It grants him visions of Yokai threat levels, skill awakenings, and power drawn from sanctified data itself. But its true purpose remains unknown, and its voice feels less like a god’s… and more like something watching. Beside him stands Devil, a Yokai in human form, once a feared demon hound, now seeking to purify his corrupted soul. To the Church, they are heretics. To the Yokai, they are executioners. To each other, they are the only light left in a world where faith has died. As Haruto rises through the Seiryō ranks, collecting horns and unlocking the forbidden secrets of his Priest System, he begins to realize a terrifying truth: the System was not built to save humanity… but to replace it. And when the gods refuse to answer, a broken priest must become the light that burns the darkness itself.