Oh, I'd say it was more the other way around. It began as a personal curiosity that I focused on in my free time. But since the establishment of more artificial portals, ghosts have become more common in the human world, and it's created a thriving market for ghost defense technology. It's become a decent portion of my business.
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They're nothing but opportunistic hacks who rely on a gimmick. They couldn't catch a ghost if it was right in front of their faces.