Bankai and Bat Wings

JS nodded as Kuro agreed to his conditions and watched his Zan's blade become enveloped in black reiatsu. Then Kuro Spoke: "Within this is your bankai. If you manage to defeat me, I will allow the use of it. Now, Jon, COME! LET US FINISH THIS!"

Jon nodded as he calmed and raised his blade to his face. As Kuro took his offensive stance, Jon raised his blade above his head as Kuro rushed at Jon.
Jon took the Slash as he launched his own attack going the opposite way of Kuro's. Jon's sword then dropped from his hands. Jon was bleeding from his wound. Ordinarily, Noj would take Jon over, but this was his, Jon's and Kuro's inner world. Besides, Noj couldn't use Jon's Zanpaku-to if he tried....not YET anyway...Noj watched to see what Jon would do next.

Jon reached his hand inside the reiatsu-covered weapon that Kuro held and gripped the first thing he felt. "Kuro...you said my Bankai was inside this, right?" Jon looked Kuro in the eyes and said with a calm voice, but a strong resolve, "I beleive I've proved myself...I'd like to claim what's mine..." Jon was unshaken, despite his wound, despite all of his wounds, and that was clear to see. Jon would push himself beyond the point of death to get that which could make him stronger, all for his mother. No...she's not my mother,Jon realized, but she did raise me...and I owe her that much...

Noj began to chuckle, which grew into a loud cackle.

"BRAVO, JON! BRAVO, KURO!" He walked toward them. "I must admit I'm very im-"

Noj was interrupted by Jon, who gripped his fallen blade with his other hand and pointed it at Noj's throat.

"You'll be as quiet as possible, or I'll use this on you next..." he said to his demonic twin.

Bankai training of the thread has finished at this point!

Noj was not surprised by Jon's reaction, but calmed himself and slicked his hair back with his hand.

"Well done..." he said, patting JS on the shoulder and leaving a bit of his power with Jon, the ability to go into and control his first Demon form. Noj walked away and faded, for now, but Jon knew he'd be back...along with that weird demon he saw in his vision...

He turned to Kuro, who nodded and let go of the Reiatsu-coated weapon. Jon pulled the weapon from the reiatsu and looked at it. This was his Bankai. It looked almost exactly like his shikai with one major difference, it had a 'chain' of blades that was about 3 feet long.

"This is your Bankai, Jon...Kuro Ketsuniku Oni...it is much more powerful than your shikai...use it well..."

"Thank you Kuro...," Jon looked up to him, but he was gone, alone in his inner world...

"...I should probably get back to bed..." Jon said, "I can practice with this in the morning..."
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Jon came out of his trance and looked to his Zanpaku-to. It looked the same, but Jon could feel that there was another hidden level of power to it. Jon was about to try it but fell asleep before he could. As his eyes finally shut, he Zanpaku-to returned to it's necklace shape.