| etude prologue ~Yure Ugoku Kokoro no Katachi~ (2006/04/27 PS2)
|
| Gunji Tatsuya | Morikubo Shoutarou |
| Saeki Hitomi | Matsumoto Ayano |
| Saeki Yuumi | Kuroda Hitomi |
| Hagiwara Asami | Chihara Minori |
| Ayuse Midori | Fukuhara Kaori |
| Nakazawa Kaoru | Hirama Juri |
| Yamada Mayu | Kano Mari |
| Fujino Azusa | Soda Miho |
| Amano Shingo | Shimowada Hiroki |
| Katagiri Nachi | Takeuchi Ken |
| Kusanagi Shun | Fukushima Jun |
| Sanada Hiroshi | Sasanuma Akira |
| Sawato Yuzuru | Ono Daisuke |
| Nainagi Norihisa | Sugita Tomokazu |
| Hanamura Hajime | Sugita Tomokazu |
| Nuinuma Kazura | Suzuki Tatsuhisa |
| Katagiri ฦไป | Suzuki Tatsuhisa |
| Haji Hiromi | Tsuboi Tomohiro |
| Hagiwara ๕P | Tsuboi Tomohiro |
| Minami Kasumi(?) | Yoshikawa Yuuya |
| Kusanagi Nanaka | Satou Arise |
| Hanabuki Taichi(?) | Sakaue Minoru |
| Sanada Shuushi | Kirino Yasushi |
| Sanada Gakushi | Fujita Mami |
| Ayuse Akemi | Oota Itsuki |
| Matsumoto | Mitoma Kouhei |
| Nakazawa Y๑ | Kanezaki Kunio |
| Nakazawa's Fiance | Yoneda Motohiro |