Neneko Kamimori
About
Younger sister of protagonist, Asuma. She's level-headed and reliable for her age, and has excellent grades in school. Because both parents are absent, she manages all of the housework of the Kamimori house, in place of her unreliable older brother. The truth is, she harbors more than sibling feelings for Asuma.
(Source: Tsukumimi vol. 1, "Character Introductions")
She is pregnant with Asuma's child at the end of the story and becomes one of Asuma’s four wives.