Kashin is afflicted with a disease that will turn her into a cat if an antidote is not found, and Kada is still seeking the Crucial Ways to the Key of Peace, so he entrusts Kanu's group to go seek the ingredients for an antidote. At the same time, Choujou is plotting something between the Kingdoms, and Kashin may have been only the first in a line of dominoes set to fall.

Shin Koihime Musou 3 : Otome Tairan (TV) Limited Edition: Complete Box Set (DVD) Episode titles:

• 1. Ryuubi, Going on a Journey Once Again
  
• 2. Houtou Hides Something
  
• 3. Ryomou Tries Academics
  
• 4. Gien, Falls In Love At First Sight
  
• 5. Sonshoukou Attempts To Fulfill Her Duty
  
• 6. Gien's Life Is In Danger
  
• 7. Kougai Makes A Plan To Deceive Her Allies
  
• 8. Moukaku Is Captured And Released Many Times
  
• 9. Gunyuu Attempts To Defeat Toutaku
  
• 10. Amane Hiroshi, can sneak into the palace
  
• 11. ??        
  
• 12. ??