The Unspoken Trust System in Japan

There's an Ava version of the butt plug. There are certain like kind of like IPs that you will notice get a lot of jin cheese. Some doujinshees, some companies know that fan products help push the sales of that certain IP. So they know by letting the douJinshe industry exist for their certain IPs that it's going to like subconsciously push sales. Now if only they could take this mentality to other aspects of the entertainment industry.