As Demon World's best engineer and archaeologist, Vinette was the Lead Scientist in the creation of Heavenhold. Not only is she the leading scholar in both archaeology and engineering, if Lilith is considered to have spearheaded the economic growth of Demon World, Vinette is considered to have trail-blazed the development of Demon World's technology.
Vinette, who showed great promise in engineering from her youth, was the Principal Researcher of the Saul Engineering Lab. Although she was competent enough to solve questions nobody could answer, she held little interest in Saul's military engineering. Her sole interest was in ancient civilizations and her hobby was exploring ancient ruins. Vinette was thus considered an eccentric by the other Saul scientists.
Based on her travels to the ruins, Vinette published multiple papers on ancient engineering. However, her works were rejected by academics who didn't understand the engineering of ancient civilizations. Vinette didn't care much about academic recognition though because she genuinely loved doing the research. Eventually, she quit her job at the lab to focus more on researching ancient civilizations.
One day, Lilith, who is Vinette's long-time friend and also the Demon Queen, visited her for advice about the development of Demon World. Though those around Lilith were skeptical of appointing Vinette, who was not academically recognized, as a technical support advisor, Lilith knew of Vinette's brilliance better than anyone. With Lilith's support, Vinette became the Technical Advisor for Demon World and established a lab as well as a university to educate more students. Conducting research together, she and her students gradually formed a strong bond. From then on, upon Lilith's recommendation, she joined the enterprise of building Heavenhold as the Lead Scientist along with her team of students.
The 'nanoparticle' technology Vinette employs is an ancient technology no one could recreate. To utilize this technology, which is extremely complex to even make in the first place, the cerebral nerves had to be connected to the nanoparticles. Not only was the procedure life-threateningly dangerous, if you didn't completely understand ancient technology's principles, it couldn't even be used. Yet, against all odds, Vinette successfully recreated the nanoparticles and even modified her own horns to enhance their functionality. This was a monumental event, as it was the first perfect recreation of ancient civilization's technology in Demon World. However, academia refused to recognize her achievements, dismissing them on the grounds that only Vinette could utilize such technology and thus could not be commercialized. Lilith, who attended the nanoparticle technology presentation, was deeply disappointed by the narrow-mindedness of Demon World's academia. This prompted her to reduce the fundings of stubborn scholars and redistribute it to support younger and more innovative researchers.