Taiki Masuda had been working as a tattooist in Osaka for years when, one day, he was told his job was illegal, based just on a single government memo. Since then, he has founded an advocacy organization, pushed for legal reform, and taken his fight to court. We talk to Taiki about his fight, go inside a Japanese-style tattoo studio in Osaka to see what it's really like, and hear from Horiyoshi III, perhaps Japan's most famous tattooist, about why he doesn't support Taiki and his allies.