So yeah, this strange dream about Nobuhiko is obviously a Gorgom plot. Because Kyoko thinks that the said dream has nothing to do with Gorgom, she ends up falling to the trap set by Gorgom. This then lead us to scene wherein Kyoko and Nobuhiko had their short reunion. Granted, it was all an illusion but you can see Kyoko's desire to see her brother again. The said desire is also one of the requirements set by one of the Gorgom priest so that the plan to use Kyoko's life energy for them to feed it to Shadow Moon will work!
As for Kotaro, he discovers where the Tapir Mutant is hiding Kyoko's body since her soul is currently being fed to Nobuhiko's weakening body. With that in mind, the fight between BLACK and the Tapir Mutant begins. The fight is not that interesting, so yeah, after the finisher, everything is back to normal and that Kotaro saved Kyoko's soul from being devoured completely by Shadow Moon. At the end, Kotaro was able to save Kyoko and Nobuhiko's mutation to Shadow Moon continues now that he has bits of Kyoko's soul. The bigger is this, can Kotaro save the man that he considers his brother?