Well I've watched all of the Tsubasa anime up to the Spring Thunder OVA and I am very confused. The story was flowing nicely up until the OVA where we see the very end of whatever it was they were doing in Fai's world. It seems to me that there was quite a bit of story there that they should not have skipped over.
So here are my questions regarding the manga:
Is their time spent in Fai's world covered in the manga and if so what issue does it start in? (And why would they leave it out of the anime?)