The inclusion of seieki in the title points to a specific mechanic common in adult-oriented Japanese fantasy:
Conversely, seieki (blood/essence/vital fluid) represents the life force. In Chinese and Japanese mythology, dragons are often benevolent spirits of nature, distinct from Western fire-breathers. Their blood is synonymous with the "Elixir of Life." Consuming or inheriting this blood grants longevity, supernatural strength, and elemental control. In the context of the title, the "essence" is the raw material required for apotheosis. It is the concentrated power of the earth and sky, compressed into a liquid form. dragon blood ryuu no noroi to seieki de kami