Marionette - New subject 08 (Patreon)

Lil Lore:

After the marionette had subjected Demi to endless tests, a breach in her lab abruptly cut short their activities. However, the scientist had already prepared for this.

Before parting ways with Demi, she drained the vampire of all her blood to further conduct her experiments on the dreadblood. This would, however, prove to be a fatal mistake.