Nijiiro Days (虹色デイズ Nijiiro Deizu, lit. Rainbow Days) is a Japanese shōjo manga series written and illustrated by Minami Mizuno, and published in Shueisha's Bessatsu Margaret magazine. A drama CD was released with the seventh volume of the manga in October 2014. An anime adaptation produced by Production Reed has been announced.
 

Nijiiro Days / Rainbow Days