Nanatsuiro Drops

is a Japanese adult visual novel developed by UNiSONSHIFT and released on April 21, 2006 for Windows PCs. The game was later ported to the PlayStation 2 and Nintendo DS. A light novel, written by Tamaki Ichikawa and illustrated by Noizi Ito, was published by Enterbrain in June 2006. Two manga adaptations were published by MediaWorks and later ASCII Media Works. A 12-episode anime produced by Studio Barcelona aired between July and September 2007.