She is the mother of Scry and Csry, and also the wife of Slen. Her nickname is Sisa. She is currently living in an unknown household in a unknown place with Slen, at the age of 39.
Her little hair-clips on her ears are her seals. Her seals keep her from having red eyes like how the whole family has the power to do red eyes. The reason she seals them is because she usually goes in public and people will judge her and be scared of her when her red eyes show.
Sita and Slen's house have lightish green walls and a brown roof. Her usual attire in the house is the picture above, but same thing for going outside.