A-Channel  

A-Channel: The Animation

For many years, Tooru and Run were the closest of friends. When Tooru discovered that she had enrolled at the same high school as Run, she rushed to inform her friend about it. However, upon arriving, she found Run in a rather compromising situation with another girl named Yuko. This led to some awkwardness at school for both Tooru and Yuko, who had to navigate through Run's drama-filled relationships while also dealing with the attention of those interested in him. Nagi, their other girlfriend, was also affected by this situation.

Pre-aired on April 6, 2011. The regular TV broadcast started on April 8, 2011.