Koi Kaze

is a five-volume Japan manga that was adapted as a 13-episode anime television series. It tells of a love affair between a man in his late twenties and his teenage sister. The story focuses on the issue of genetic sexual attraction, a condition where two people who are related but have been apart may find themselves attracted to each other more than two complete strangers. The manga, authored by Motoi Yoshida, was serialized in Kodansha's The Evening. The anime went into production before the... full article at wikipedia