It was announced that there will be an OVA made for the manga "Nijiiro Prism Girl
" and it will be included in the September issue of Ciao which will be released on August 3rd. The manga started serialization in Ciao in 2010 and 5 volumes have been published so far.
Cast information is as follows:
Kohinata Nijika: Nishiguchi Arisa
Ichinose Touya: Ohsaka Ryouta