Sora Aoi

The protagonist of this story. His first name is written as Soukuu in kanji. He attends the same high school as his sisters Aki and Nami. Unlike his sisters he is good at cooking and housework. His effeminate appearance makes him a perfect candidate for crossdressing which he finds himself engaging in involuntarily. He is deeply in love with Aki and doesnt resist her the second time she tries to have sex with him.