Story
Artisan Essence Extractor Alzirr explains that essence is the source of life force that sustains all growth and activity. He claims that understanding this energy enables more efficient extraction. Follow Alzirr's guidance to sense the life energy and extract Ruby to obtain Splendent Ruby. Ruby is found in the Dredgion Crash Site, Calderon Canyon, Tranein Highland, Silent Hill, and Nameless Cemetery.
After completion (spoilers)
"Show me what you've brought." Though it was a difficult task, you managed to extract Splendent Ruby and took it to Alzirr. He said that you finally seem to understand the source of life energy and have mastered the method of extraction, upgrading the Essence Extraction Skill level to Professional.