1. No Color (2005)2. [spinoff sequel] Doushiyoumo Nai Keredo (2007)3. [spinoff sequel & sequel chapter] Tight Rope (2008)4. [spinoff sequel & crossover extra] Ameiro Paradox (2010)
1. No Color (2005)
2. [spinoff sequel] Doushiyoumo Nai Keredo (2007)
3. [spinoff sequel & sequel chapter] Tight Rope (2008)
4. [spinoff sequel & crossover extra] Ameiro Paradox (2010)