Sono Otoko, Oniichan Ijou

An is known for her 'Brother Complex' because in her 16 years she never has any boyfriend and just liking her older brother. For An, she doesn't need any boyfriend as long as she has her brother. But suddenly, her childhood friend, Souya, confessed to her. What will An do next? She should be hating Souya because of his opposite personality with her brother... but she can feel her heart race faster...