Board Thread:General Discussion/@comment-28977069-20170120143453/@comment-28977069-20170206081003

BalaTheEDGEhog9 wrote: Why did Kira and Josefumi need to use the Rokakaka to fuse but the orange and tangerine exchanged just by being burried?

At the time, Josefumi was trying to save the already dead Kira, so he used the Rokakaka fruit to try and exchange his life for Kira's, but it didn't work as he hoped it would.

The Rokakaka fruit and the ground that exchanges things that are buried together are two different things with similar supernatural property of 'Exchange', with the latter being caused by, if my theory is right, the presence of the Saint's Corpse that was buried nearby.

It's interesting to note that in the same chapter, Chapter 17, The Lemon and the Tangerine, Kyo said that the ground that can exchange the properties of two things that are buried close together has been used by the Higashikata family for generations, which gives my theory more weight that the Corpse was buried there, fused with Kira and Josefumi and ended up creating Josuke.