Kansatsu-sha

The Observer is a mysterious figure draped in black robes, the very being who brought 'Undying' into existence and cast it upon the world. Possessing an omniscient perspective that transcends mortal limits, the Observer continuously watches over the world's unfolding, cataloguing the birth and death of all things. Throughout the prolonged struggle against the 'Knocker,' this entity has maintained an aloof, impartial stance—guiding Undying's evolution through calm and reasoned direction. Ultimately, the Observer intends to pass the mantle of protecting the world onto Undying.