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Regular Edition
1. Tsubusa ni Koi
2. I to U
3. Nanairo Parameter
4. Hi & high
5. Tsubusa ni Koi (Original Karaoke)
6. I to U (Original Karaoke)
7. Nanairo Parameter (Original Karaoke)
8. Hi & high (Original Karaoke)
+ 7 Shiawase Koi Photo Cards (First press only)
Limited Edition
- Tracks 1-2
- DVD: Tsubusa ni Koi PV + Making of
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