Aki-Sora

あきそら

Siblings Aki and Sora Aoi have been unusually close since childhood, and as they come of age that closeness turns into a secret romantic and physical relationship they hide from the rest of the family. Sora's twin sister Nami, unaware of what is happening at home, tries to set Sora up with her best friend Kana Sumiya while nursing feelings of her own. Itosugi's adult manga follows the family's tangled attractions through six volumes marked by explicit content.