Maeda wrote and composed the two songs "Doll", performed separately by Lia and Aoi Tada, and "Human", performed by Lia; both versions of "Doll" were used as the main ending theme songs for the second season of the anime series Gunslinger Girl in 2008, while "Human" was used for the final episode.
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Similarly, the concept of the switching between a real-life setting and the mystical Eternal World from One: Kagayaku Kisetsu e has been compared to Haruki Murakami's novel Hard-Boiled Wonderland and the End of the World, which uses a similar dichotomy between reality and fantasy.
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On the label, Maeda produced three singles and one album where he wrote and composed all the songs which include: "Natsukage / Nostalgia", "Birthday Song,Requiem", "Spica/Hanabi/Moon", and Love Song; the songs on the first three were sung by Lia and the fourth was sung by Riya.
Yanagi collaborated with composer Jun Maeda of Key to produce the original concept album Owari no Hoshi no Love Song released in April 2012.
Jun Kasai | Jun'ichirō Tanizaki | C-jun | Maeda Toshitsune | Jun Senoue | Jun Maeda | Jun Akiyama | Maeda Toshitaka | Maeda Toshimasa | Jun Shibata | Jun Lana | Jun Jin | Atsuko Maeda | Xie Jun | Toshio Maeda | Tadashi Maeda | Ma Jun | Maeda Toshimasu | Maeda Genzō | Maeda clan | Liu Jun, Prince Shixing | Lee Dong-Jun | Jun Togawa | Jun Miyake | Jun Märkl | Jun Kaneko | Jun Kamiwazumi | JUN | John Maeda | Japanese aircraft carrier Jun'yō |
After the completion of One, Hinoue and much of the staff who made both Moon. and One, including Jun Maeda, Shinji Orito, Naoki Hisaya, and OdiakeS, left Tactics to work under the video game publishing company Visual Art's where they formed the company Key.
After Ones completion, Hisaya and much of the staff who made both Moon. and One, including Jun Maeda, Itaru Hinoue, Shinji Orito, and OdiakeS, left Tactics to work under the video game publishing company Visual Art's where they formed the company Key.