- Also, monohydric.
- Feedback Harukanaru Falcon (Shueisha Bunko) (2012) ISBN: 4087467902 [Japanese Import]
- Zipangu Island discovery mentioned (Shueisha Bunko) (2012) ISBN: 4087468550 [Japanese Import]
- すべてを「投げ出したくなった」ら読む本
- Three Kingdoms 3 (Shueisha Bunko future) ISBN: 4083210729 (2012) [Japanese Import]