Nanami Haruka and Mikaze Ai are childhood friends. Haruka knows about Ai being a robot and couldn't care less. The problem is, Ai doesn't know what emotions or feelings are. So, in order to learn about them, he asked Haruka to teach him what they are. But in the way, a mysterious feeling occurs to him. Will he figure out what the feeling is? Will she be able to teach him about feelings and emotions? AiXHaruka