Snow Globe, a kinetic novel version of the previously released prequel short story of the same name. Key collaborated with video game developer Wright Flyer Studios to produce the mobile role-playing game Heaven Burns Red released on February 10, 2022 for iOS and Android devices. A four-volume kinetic novel series for Prima Doll will be released between 2023 and 2024. Key Sounds Label In 2001, Visual Arts created the record label Key Sounds Label (KSL). The music albums and singles released by Key after this were put under this label, meaning that this does not include the first two albums and one single which were released before it was officially formed. The first album on this label was Humanity..., though the only direct connection to Key's works is that it contains a remixed version of the opening theme to Air. The albums under the label are mainly composed by Key's signature composers: Jun Maeda, Shinji Orito and Magome Togoshi. Three of the singles feature songs sung by Lia and one album, Love Song, features the singer Riya from Eufonius. Three drama CDs have been released as well. To celebrate Key's ten-year anniversary, Key hosted a concert called KSL Live World 2008: Way to the Little Busters! EX on May 10, 2008, in Tokyo, Japan, and again on May 17, 2008, in Osaka, Japan. Each time, the concert lasted for two and a half hours and featured songs sung by Lia, Rita, Chata, and Tomoe Tamiyasu who have previously sung songs for singles and albums released under Key Sounds Label. Another concert called KSL Live World 2010: Way to the Kud-Wafter was held in Tokyo between May 21–22, 2010. A third content called KSL Live World 2013: Way to the Little Busters! Refrain was held in Koto, Tokyo on September 16, 2013. A fourth concert called KSL Live World: Way to the Angel Beats! -1st- was held in Akihabara, Tokyo on April 11 and April 12, 2015. A fifth concert called KSL Live World 2016: The Animation Charlotte & Rewrite was held in Toyosu, Tokyo on April 30, 2016. Key Net Radio Key produced 30 episodes of an Internet radio show called in regard to the brand between December 13, 2007 and August 30, 2010. It was hosted by Shinji Orito and Itaru Hinoue of Key, and another woman named Chiro who works for Pekoe, another visual novel studio under Visual