Puella Magi Oriko Magica (魔法少女おりこ☆マギカ Mahō Shōjo Oriko Magika) is a spin-off from the main series, written by Kuroe Mura. Taking place in an alternate timeline from the anime series, the story follows the magical girls as they investigate a case of magical girl hunting. The series was released in two tankōbon volumes on May 12, 2011 and June 12, 2011, respectively. Two side-story arcs, titled Noisy Citrine and Symmetry Diamond, focusing on Kirika Kure and Oriko Mikuni respectively, have been published in Houbunsha's Manga Time Kirara Magica magazine. They were then collected in a volume titled Puella Magi Oriko Magica: Extra Story (魔法少女おりこ☆マギカ［別編］ Mahō Shōjo Oriko Magika [Beppen]) along with a new short story, The Last Agate. A prequel to the first Oriko Magica installment, Puella Magi Oriko Magica: Sadness Prayer (［新約］魔法少女おりこ☆マギカ〜sadness prayer〜 [Shinyaku] Mahō Shōjo Oriko Magika ~sadness prayer~, lit. "[New Edition] Puella Magi Oriko Magica: Sadness Prayer"), is also being published in Kirara Magica. The first collected volume was released in Japan on February 12, 2015. Yen Press has licensed the first three Oriko volumes in North America.