A catfish who became a swamp deity, and lives in a palace underneath her swamp with her many fish attendants. Ten years ago she fell in love with a young boy, and she asks Nanami to help her reconnect with the boy once again. As repayment, when Nanami visits her palace she allows her to wear one of her luxurious kimonos so she will look her best in front of Tomoe. Despite rarely speaking, Himemiko is very perceptive and seems to be one of the few characters who has figured out that Nanami is in love with Tomoe. Initially she appears very "fishy," with bulging eyes and a fishlike noseless face. However after getting a makeover from Nanami, she maintains a more casual "human" appearance so she can meet the boy again.
Hata no Kokoro is a menreiki youkai. Kokoro naturally has a quiet, child-like personality but also a love of the stage, and relies on her masks to properly communicate her emotions. All of her emotions are stored in her masks, causing her behavior to swing wildly as she switches between them. Eventually, however, she manages to develop a sense of self and become less dependent on them. Each of the masks which make up Kokoro embody powerful emotion, and will impress that emotion on the holder and those around them. When all 66 masks are together, their effects complement each other and are under Kokoro's full control. If an individual mask is separated from the group then it retains its properties, but Kokoro will also lose the ability to feel that emotion completely. Losing her Mask of Hope caused Kokoro to become unstable and leech hope from her surroundings, until she was able to compensate by developing emotions separate from her masks'. Kokoro has a total of 66 masks, each of which depict an emotion. She is unable to express emotions without using these masks. Typically, she just uses the masks that represent joy, anger, pathos, and humor. (Source: Touhou Wiki)
Toyosatomimi no Miko is a saint who spread Buddhism across the country as ruler while Seiga Kaku taught her Taoism. As a follower of Taoism training to attain immortality, she now lives her life in a simple, carefree manner, as a hermit. Miko is characterized as being "surprisingly casual", and frequently jokes around. Though she's a fully immortal hermit, she still tends to get involved in secular affairs because of her origins as a ruler. During combat, however, she displays no sign of weakness and seems to completely see through her opponents. As a hermit, she isn't concerned about teaching her techniques to the many that want to become her disciples, and simply uses them as servants and couriers. She's cooperative and friendly towards humans in general, though. Her ability comes from a famous legend about Prince Shoutoku. It's said that Prince Shoutoku was so smart that he could understand ten people questioning him all at once and then be able to give them back perfect answers. Because of this ability, her ears are extremely sensitive. This is the reason she wears earmuffs. In addition, to a certain extent, she can discern the desires of those she talks to. Miko's a hermit living in Senkai. Though she apparently has disciples, she doesn't teach them her ways, but rather treats them as servants. Her main goal is to achieve immortality, and then eventually become a celestial. (Source: Touhou Wiki)