In the Mystery Tower, Master Yen Sid was sitting on his usual seat. But this time he look kinda hesitated, not his usual calm. King Mickey was there, also hesitated because of the behavior of Master Yen Sid.
"It seem like Ventus will be awaken sooner than I thought." Master Yen Sid said while brushing his beard. "That mean his heart has fully recover!" King Mickey exclaimed. Master Yen Sid nodded at King Mickey's statement, but still has the worried face.
"But, that also mean we're going to lose one of a strong Ally." Master Yen Sid added. King Mickey widen his eyes, he wouldn't ever thought someone from their will gone or death sooner before the final battle even begin. "Who is it the one we're going to lose?" King Mickey asked. Master Yen Sid remain silent, but King Mickey know that it was going to be really bad if this someone gone or death.
Meanwhile in the Castle Oblivion, Sora, Donald, and Goofy were fighting heartless there. They were looking for the Chamber of Awakening. Unfortunately, they haven't found it from yesterday until now.
"How much longer will it take to search the Chamber of Awakening?!" Donald asked angrily. "Dunno, but I'm sure we find it!" Sora replied while smiling.
They continue their search and eventually found a door that locked. Sora raise his keyblade to unlock it, but somehow he can't open it. "That's weird... I thought Keyblade supposed to unlock every keyhole that exist..." Sora mumbled.
Back in the Mystery Tower, Riku and Kairi have just come back from their mission. King Mickey told them to come here because Master Yen Sid going to give them a new mission.
"Like we all now, the final battle will be begun soon. We have to gather all of the 7 Guardian of Light." Master Yen Sid explained, "However, we know that Master Aqua is stuck in the Realm of Darkness while Ventus is healing his heart in the Chamber of Awakening." The other just nodded at Master Yen Sid's explanation.
"King Mickey and Master Riku, your mission is to go to the Realm of Darkness and save Master Aqua. Kairi, your mission is to go to Castle Oblivion to help Sora to unlock a keyhole that he can't open." Master Yen Sid said. And so they went to their mission.
Kairi arrived at Castle Oblivion, it took 2 hours to find Sora and others. "Kairi, what are you doing here?" Sora asked in surprise. "Master Yen Sid told me to help you unlock this door." Kairi said while rubbing her nose cutely. Sora nodded and let Kairi try to unlock the keyhole.
She raise her keyblade at the keyhole as it surprisely unlocked. "Gosh Kairi, you're amazing! You can unlock the keyhole that Sora couldn't do." Goofy praised as Sora punch his arm playfully. Kairi just giggle at it.
They all went inside there. Donald pointed at a boy who looked like Roxas sitting in a throne in the middle of the room, sleeping. "So that was Ventus. But it weird that your Nobody look just like him, Sora." Kairi said. But Sora didn't replied, nor react. "Sora?" Kairi asked while shaking him a bit.
Suddenly, Sora body started to turn glass pieces as it fading. Kairi, Donald, and Goofy shock at this. A piece of light come out from Sora's chest, maybe it was Ventus heart. But what happened to Sora body. Kairi quickly hugged Sora, maybe with this he will be okay. Unfortunately no... He still going to fade away. Before Sora really gone, he manage to smile and mutter a sorry. With that Sora gone, leaving Kairi fall into her knees and started to hystericaly cry. Donald and Goofy tried to calm Kairi down, but they also crying.
"Hello?" A voice from behind said after it sleep for a long time.