The official 'The World God Only Knows' website has started streaming a commercial featuring the opening theme for its upcoming 'The World God Only Knows: Magical Star Kanon 100%' OVA last week. The opening theme is sung by Nao Toyama and is entitled 'Kanon 100%'. The spinoff series originally started as a three-chapter manga in Shogakukan's 'Weekly Shonen Sunday' called 'Magical Star Kanon 100%'. The manga is popular for re-imagining idol Kanon Nakagawa as a magical girl. The OVA will see Nao Toyama making a return to play Kanon Nakagawa, Kanon Ito as Elsie, Hiro Shimono as Keima Katsuragi, Miki Itou as Okada Manager, and Aya Suzuki as a new character Kozue. The project is to be directed by Mitsuko Kase with Yuuko Kawabe writing the scripts. Akio Watanabe is in charge of character designs and Hayato Matsuo will be scoring the soundtrack. The video will be available in a bundled edition of the 22nd manga volume of 'The World God Only Knows' on June 18th 2013.