Immortal God's Inscription

Thousands of years have passed, and it is already on the eve of the great calamity. Thousands of immortal gods will return from the years, and demons will return to the world. In order to survive, the demons devour the human race. In order to survive, the human race worships the immortal gods, but how can the immortal gods care about the life and death of mortals! Just in the name of an immortal! This book is also called: Yasukawa is practicing