In the previous episode they had completed the restoration of the journal, and Sora had lost his power. The King asks Riku to put Sora back into the data world so that he can check out the new world that has appeared.
When Sora wakes, he is in Traverse Town. When Sora looks around to see what has happened, the King appears in front of him
“Sora, that day your journey started from here. And on that day, I was here too. It’s time I tell you the truth.”
Sora sees if he can use the keyblade, and then the King opens a door to the new world... to Castle Oblivion.
In Castle Oblivion, the King is no longer with Sora. Instead there is a black coated man. He says “If you want to know the truth you must move forward.” and hands Sora a card. It’s a Destiny Island card. So he uses the card on the door in front of him, and enters a pure white room. And then Selphie appears.
[I read through all the rest, but he just goes through all the worlds again talking to Disney characters and killing Bugs. Extremely boring. I’ll only translate the interesting parts.]
During this time, Sora realizes something. That is, even if you don’t remember someone you’ve met, there is still the “sadness of having forgotten them”. He holds that sadness close to him and continues on. The black coated man tells him that he should forget that pain. If he holds it too close, he will soon fall into darkness. But Sora can’t make that choice. After having gone through everything, he had held his pain and continued on. And the black coated man... Roxas, says “Then I’ll show you real pain!” and attacks. [apparently he’s dual-wielding at this point, woo!] Then Roxas gives Sora the “Card of Truth” and is absorbed. Sora meets up with the King, and they open the next door...
Beyond the door is Namine. She tells him that because his memories destroyed and then restored once, that had created the Bugs. And she tells him that within him there is someone else's memories. That is the true meaning of the words that were written on the journal, “You must return to free them from their torment.”
Roxas, Axel, Namine, Xion... as well as Terra, Aqua and Ven. Though they are gone, they are still connected within Sora’s heart. “I feel as though I’ve met them.” Sora says “You have met two of them. And one you seem to have a special connection with.” Namine says and then, “In the future, the time will come when they will need to be awakened.” The King promises Namine that he will “Tell Sora in the real world.” As Namine fades away Sora tells her, “Thank you.”
During the credits the King sends Sora the letter. It’s the letter that Sora received in KHII.
I wanted to tell you immediately.
There are memories asleep inside you.
Those memory fragments connect to the future.
Sora, Riku, Kairi...
The truth surrounding the Keyblade, passes through numerous connections, they’re inside your hearts.
Sora,
It all leads to you, everyone is waiting for you. The only one who can heal their sadness is you.
Its possible that the travels up until now compared to the next trip may have been easy everything thought to be accidental was really connected the door to a new departure already seems to be opening.
-Mickey
