Aiblinger's Horn Syndrome. A disorder which causes the afflicted individuals to have horns sprouting from their scalp. It's been known to cause psychological and emotional issues from the stress of society's stigma and the individuals' struggles to hide their horns and fit in. This exact condition is what has been plaguing Mio's classmate, Kanome. And yet, how can he be so happy? How can he smile so easily? She just doesn't understand. Not only that, she also has turmoil and confusion brewing inside her related to this classmate of hers which frustrates her even further. This is their story.