----"Accumulated Time."
It referred to the total amount of time an individual had experienced from birth up to the present.
If human history meant all the history humanity had experienced from ancient times to the present, then Accumulated Time was all the history that belonged to a single person—their personal history.
Experience, memories, growth, changes—everything a person possessed throughout their life constituted their Accumulated Time.
The True Ancestors of the vampires could boast such tremendous power precisely because they were the oldest vampires. Their ageless, immortal lives had allowed them to accumulate enormous amounts of Accumulated Time, which served as their source of power.
This was hardly strange.
In any world, so long as mystery existed, merely passing through a long span of time would grant that mystery tremendous power. That was beyond dispute.
In the world where Chaldea existed, the Age of Gods had been far more powerful than the modern era. Phantasmal Species could rival magic simply by surviving for a long time, and even some objects left behind from the Age of Gods and ancient times would become irreplaceable ancient mysteries and extremely precious magical materials. The more time they experienced, the stronger they became.
The True Ancestors had gained their formidable power because they were the oldest of their kind and had accumulated vast amounts of Accumulated Time in their blood. The other vampires were the same: the longer they lived, the stronger they became. Their acts of vampirism were also meant to draw Accumulated Time from others and store it in their blood. The same principle applied when members of the same species devoured one another.
Thus, people called the vampires' Accumulated Time—"Blood Memory."
Yet as an artificial True Ancestor, the Fourth True Ancestor did not possess sufficient Accumulated Time and could not wield power