Kaku Seiga is a character in the series Touhou Project. She plays a major role in Ten Desires as the 4th Stage Boss and for being the one who taught Taoism to Toyosatomimi no Miko. A rather prideful girl who thinks Taoism is superior to other religions and tries to get people to convert. She acts to further her own goals, and nothing more, which is why she is labeled a wicked hermit and not accepted by the heavens. Her revival of Yoshika's corpse shows her lack of regard for human rights. She doesn't appear interested in material possessions at all, despite her ability to pass through walls.
- Seiga eagerly awaits Toyosatomimi no Miko's revival. She is, however, very fond and proud of Yoshika Miyako and treats her more as a pet than a normal servant.
- She often calls Yoshika "my cute underling".