Numa no Himemiko

沼皇女 / 姫美子

A catfish who transformed into a swamp deity, residing in a palace beneath her swamp alongside numerous fish attendants. Ten years ago, she fell in love with a young boy, and she requests Nanami's assistance to reconnect with him. In return, when Nanami visits her palace, she permits her to wear one of her luxurious kimonos so that she will look her best before Tomoe.
Although she speaks rarely, Himemiko is highly perceptive and appears to be among the few characters who have realized that Nanami is in love with Tomoe. At first, she looks very "fishy," featuring bulging eyes and a noseless, fish-like face. However, after receiving a makeover from Nanami, she adopts a more casual "human" appearance to enable her to meet the boy again.