* Based on Itosugi Masahiro's incest-themed romantic drama manga Aki Sora, serialised in the seinen magazine Champion Red Ichigo. The relationship between the siblings Aki and Sora continues to grow, even with the family constantly around. Nami on the other hand has strong feelings for her friend Kana, even though Kana actually likes Sora. This turmoil makes Sora question if he can or should continue the incestuous relation with his older sister Aki.