I"s (アイズ, Aizu) is a Japanese teenage romance manga by Masakazu Katsura. Originally serialized in Shueisha's Weekly Shōnen Jump in Japan from 1997 to 1999, the series was collected into 15 bound volumes, the first of which was released in the United States by Viz Media in March 2005.
The story's main character is 16-year-old high school student Ichitaka Seto who is in love with his classmate Iori Yoshizuki, but too shy to tell her. Again and again he plans to tell her his true feelings, but each time something (usually a misunderstanding of some kind) gets in the way. Things become even more complicated when Itsuki Akiba returns to Japan; she is a girl Ichitaka was friends with in their childhood before she moved to the United States, and who had a huge crush on him.
There was also a two-episode OVA, From I"s (most frequently referred to as just I"s OVA), based on the manga released in 2002, and a new six-part OVA, called I"s Pure, was released in 2005 and 2006. Both I"s and I"s Pure were licensed in the United States by Viz Media, and they were released as a box-set on March 24, 2009.