Douga. To commemorate the 15th anniversary of her debut, Tanemura released an independent album titled Junai Tenshi on December 29, 2010 at Comic Market 79 under the circle name "Meguro Teikoku", with songs based on ten of her main female characters from her previous works. The album features vocals and lyrics from Tanemura, and she performed several songs live during her autograph event at Animate on March 6, 2011. While she had written lyrics to songs before, the CD project had come from her desire to write lyrics without having them altered by professional lyricists. After the 2011 Tōhoku earthquake and tsunami, Tanemura contributed to a dōjinshi anthology with other manga artists that was sold for charity efforts. From July to November 2011, she launched Fudanjuku Monogatari in Margaret, a manga adaptation featuring fictional portrayals of the idol girl group Fudanjuku. Tanemura had decided to draw the manga after they had expressed interest in cosplaying as her characters. 2011–present: Departure from Ribon, Idolish7 Beginning in May 2011, to celebrate Tanemura's 15th debut anniversary, Shueisha began reprinting I.O.N, Phantom Thief Jeanne, Time Stranger Kyoko, and Full Moon o Sagashite in bunkoban format. In November 2011, Tanemura ended her exclusive contract with Ribon to work freelance, her last work with the magazine being Sakura Hime: The Legend of Princess Sakura, which concluded in 2012. Following her announcement, Shueisha reprinted her short comics from 2001 to 2010 in the anthology Tanemura Arina: Ren'ai Monogatari-shū, which included a previously unpublished 6-page story. Tanemura wrote and illustrated Neko to Watashi no Kinyōbi, which ran in Margaret from 2013 to 2015. At the same time, she also started serializing Idol Dreams in Hakusensha's Melody magazine. For the limited edition character song CD released with volume 3 of Idol Dreams, Tanemura wrote the lyrics to the song "Sakura-iro Time Trip." On March 23, 2013, Tanemura released her second album, Princess Tiara, on an independent record label, composed of theme songs performed by her based on her characters. In 2015, Tanemura contributed character designs to the game and media project Idolish7. In addition, Tanemura provided illustrations to the novel and manga adaptations. She also contributed colored illustrations to the Touken Ranbu anthology, Touken Ranbu Gakuen. From 2015 to 2016, Tanemura briefly released dōjinshi as Meguro Teikoku. In October 2015, Tanemura collaborated with Yui Kikuta, one of her former assistants, to create the manga series Shunkan Lyle, which ran