On July 18, 2014 part two of the official guidebook Ace of Diamond Official Guide Book Ura was released. The release date was changed from May, 16th to July to add more content to this guidebook.
- Kominato Ryousuke's Sidestory "Face"
- Todoroki Raichi's One-shot "Batman Under the Bridge"
- Power (back strength)
Offense and DefenseEdit
- Breaking balls
Club members’ classesEdit
- 1 year
- 2 year
- 3 year
Seido Baseball Club Secret RankingsEdit
Note: This rankings were made by the female managers.