Myouga had first heard of the rumors along the grapevine in her time traveling Canelux. Being a busybody had its benefits, when handled correctly. There was a new shop in Adeluna, one run by an apothecary. Normally she didn't bother paying attention to little changes like this until she heard of the alleged 'god's blood' being sold there. She had stopped by to take a look around, and it looked normal at first. She was sure it was just some snake oil scam, and it would peter out when the fad ended. It didn't. In spite of its obscenely high price tag, people were coming back to buy it. The people who were getting additional doses were reported having severe withdrawal symptoms, and the temporary euphoric high made her guess it was some kind of strong cocktail of psychoactive stimulants. She spent the next days asking her fellow scholars and poring over volumes in the Mage College's library on various known addictive substances, but came up empty.
Since she couldn't single out a particular drug that matched the symptom list of 'Sanguis Tenebris', she tried compiling a list of the strongest known abused concoctions in the world. At one point she thought she had the crimson mixture's ingredients down, believing one of the major components to be refined Death's Kiss illegally produced from the native plants of Yovaesh, but then an unexpected epidemic of violence suddenly broke out. With none of her previous hypotheses holding water and a new, deadly set of symptoms emerging from the drug's usage, the arcanist tried to obtain a sample to study. To her dismay, the place which sold it was constantly out of stock, yet the violence was getting worse. With no time to create a cure, she chose to go on the defensive and began mobilizing a mass exodus of the unaffected residents living in the areas surrounding the city. The first person she warned was her former student, Liselotte Ellebore. The alchemist then spread the word throughout her community while Myouga worked to help the others.
Carriages, wagons, horses, all types of transportation were being hired and arranged to move the people northwards towards the center of the Corval Basin. Right now they needed to prioritize getting them away from the Kingdom of Adeluna as far as possible. The next step was to find a way to protect the currently unaffected regions from being overrun if the city couldn't contain the victims of the drug. It took many hours of testing without sleep until she formulated a setup that utilized both alchemy and magic circles to create a strong defensive barrier that would repel anything. To maximize the circles' strength, each evacuated house would have its own arcane array powered by crystals that converted light from the sun and moon into energy to fuel the circle. After bringing out all the alchemical reagents she could buy and whatever Liselotte had on hand, Myouga personally activated each circle once the occupants were fully evacuated.
The malachite green light in her eyes fading back into charcoal grey for the last time, the mage watched as the valley had become a field of domed bubbles that would protect the contents from external forces. Exhausted, she waved languidly as Liselotte was preparing to leave with her family to stay with her distant relations in Endapano. As the last of the evacuees were exiting the area, there was the sound of crashing and snapping of tree limbs as some of the quarantined afflicted had broken loose. Downing the rest of her greater mana potion, she shouted at the half-elf when the latter turned to see what was going on. "Lise, run! Get the horses moving and get out of here! I'll hold them off as long as I can, until my magic runs out! C'mon, go!"
Once the alchemist and her family were out of sight, Myouga drew her wand and began materializing a massive array of spectral arrows suspended in the air. With a flick of her wrist, she sent volleys of them into the madmen possessed by bloodlust. With eyes a bright viridian, the oni showed a rare moment of anger revealing her sharp canines and molars. "Where do you think you're going, you sick monsters?! If you wanna die so badly, then come get some!" Wave after wave of arcane missiles mowed down the frenzied abominations until they couldn't move anymore. Then, when their bodies laid in pieces, she purged them and purified their remains as to prevent them from tainting the land.