In 2060, the war between humans and Eldar has been going on for decades.
The survivors huddled in the steel fortress, while the former ghost hunters were still clearing out every possible threat in the dark.
Tide—a wolf spirit girl with crimson eyes, wanders in the darkness, hunting the executioners covered in blood. Her blade is cold, but the flame of revenge has never been extinguished.
Until one night, a mysterious being who calls himself "The World Observer" appears and reveals the truth that has been deliberately buried: behind this war, there is an older conspiracy hidden.
When the identities of hunter and prey began to reverse, under the ancient stone tablet, tide made an oath - "Someone will pay the price."
