"Are you going to do the 'Final Song'? You might end up killing her." Yoruichi suddenly spoke after seeing Kisuke still not taking back his Reiatsu-Ki.
Aika, who already transformed most of herself into a Hollow and bounded by the spiritual fabric and iron shafts, suddenly stopped struggling.
"I'm not, but just in case... Hmm?" Kisuke then suddenly smiled at Aika's change in the aura, "Looks like she succeeded..." After inspecting closely, his smile suddenly froze, "And she did it all the way... Damn... That's cheating... She's way worse than that strawberry."
Yoruichi also saw this and hurriedly stood up and ran towards the barrier to strengthen it.
The onlookers are confused at their sudden reaction when Aika stopped moving when suddenly a geyser of intertwining black and red energy suddenly erupted from her rupturing her bindings.
The Hollowfied Aika stood up and howl at the sky releasing her Reiatsu-Ki as pressure. Yoruichi's barrier creaked but aside from that, nothing else happened to it.
"W-What!? Did she fail!? And what the hell is that monster!?" Tsubaki shouted in fear as her pressure is somewhat reaching inside the barrier despite blocking most of it.
Sakura looked at Yoruichi and asks, "When will you stop this!? If this continues, Aika won't be able to go back!"
"Relax... Kisuke said it, right? She succeeded." Yoruichi replied calmly.
"Succeeded? That monster?" Sona is also feeling scared.
Yoruichi didn't speak any longer as they will see the result.
The Hollowfied Aika suddenly froze and the geyser of energy receded, making everything and everyone quiet. Her bloated ivory body full of spikes cracked all over and slowly disintegrated, leaving the Human Aika behind.
Aika is now wearing a Shihakusho and a two-meter long nodachi on her back. Aside from that, she also wearing a skull mask with lines of red and black tattoos and two small horns on its forehead which seems her former Hollowfied self left behind. All of them watched and waited for her next move.
Aika suddenly stretched her arms upwards and shouted in delight but her voice became a mix of her own voice and something else making it scary, "I finally returned!... What the heck, my voice!!! And what is this mask? Cool! Wait... my voice returned to normal. I got a free mask with a voice changer! Sweet~." Aika kept removing her mask and putting it on again while testing her voice.
Kisuke and Yoruichi didn't know what to say, 'This girl is way too energetic for someone who is just about to lose herself.'
Sona and the rest didn't move from their positions but they examined Aika's appearance. Sona's attention is specifically drawn to her mask and eyes which is still Hollowfied, "What happened to her eyes?"
Aika heard her comment and asks, "Eyes?"
Sona nodded in response.
Tsubaki took out a small mirror from her pocket and was about to throw it to her but she remembered the barrier is still in place.
Yoruichi noticed what she wants to do and removed the barrier as it is not needed anymore and urge Tsubaki to pass the mirror to Aika. Tsubaki threw it with some force due to Aika's distance but Aika didn't have any problems catching it.
Taking a peek in the mirror, she exclaimed, "Thank you... What!!? Hey, Kisuke! What happened to me!?"
Instead of answering her, Kisuke asks a question, "Can you unsummon the mask?"
"Hmm?... Oh, it disappeared... and my eyes returned to normal!" Aika inspected herself again.
"How does it feel?" Kisuke continued asking her.
"Feels great. But although I'm feeling light, it's harder to move." Aika hopped around and test her body.
"That's only natural as you're still not used to it. Some training can help you fix that." Kisuke smiled at her actions.
Aika stopped what she's doing and stared at Kisuke, "Kisuke, I'm still feeling very bloated and I just knew a way to release all of this pent up energy." She then gave him the brightest smile she could.
Kisuke knew what she is planning to do and felt intrigued, "Hooh... Looks like you're very confident. Try me."
Yoruichi reactivated the barrier because she felt that Aika is underestimating the excess Reiatsu-Ki in her system and wants to release all of them. All of them are once again confused at their actions as they thought that everything is already over.
"Okay! Here I go!" Aika pulled out the long nodachi from her back and held it in front of her. She took a deep breath and muttered, "Aeternam Somnium."
As she muttered those words, black and red Reiatsu-Ki started swirling around her and her nodachi suddenly shone the same light as her Reiatsu-Ki. After a second, it split into two different smaller double-edged curved swords around 70 centimeters each. The first one has a red edge and black body while the second has the same color but inverted.
The onlookers reacted when Aika uttered those words which caught the attention of Yoruichi and Kisuke, "Aeternam Somnium? Isn't that the 'Last Sacred Gear'? Does Aika have that? But according to the records, it is a set of dull gray twin dagger which only gives the host some boost on speed and physical strength." Akeno commented.
"You're right. It's said that it is the Biblical God's latest and last creation. It's unknown why he stopped making Sacred Gears but it's a popular belief that Biblical God failed at his last creation and stopped working on Sacred Gears. Aeternam Somnium is a strange Sacred Gear that acts like a Longinus despite its apparent power that couldn't even hurt Middle-Class Devils." Sona followed up.
"Then the only possibilities are that's not the real Aeternam Somnium or it mutated in some way or another in Kiryuu-san's hand," Tsubaki said something of her own while fixing her glasses.
They stayed silent after Tsubaki spoke up and continued to watch the situation. Although because of Yoruichi's barrier, they still haven't realized the gravity of the aura Aika is gathering.
Kisuke pointed her palm towards Aika and readied himself to block whatever she sents on his way.
Aika's smile grew bigger realizing this and raised her arms which are holding the swords, "For the name of this move... Hmm... Let's go with that." She took a deep breath and subconsciously gathered all the Reiatsu-Ki within and outside of her and channeled it towards the sword.
"Twin Fang Dimension Piercer!" As she shouted, Aika first swung her left sword downwards towards right forming red crescent energy in front of her and swung her right sword in the same manner just the opposite side forming black crescent energy which overlaps with the first one crosswise and sending it towards Kisuke's direction with extremely fast speeds.
Kisuke is shocked, not because of its speed and also not because of its strength as it is still within his calculation. What caught his off guard is the sudden stagnation of space itself around him which made him put some effort just to move about, 'Interesting...'
As the cross shape wave about to hit him, Kisuke muttered, "Millón Escudo" and a small fluctuating green hexagonal shield in front of his palm. Millón Escudo is a Kidou developed by Aizen in the past and Kisuke knew how useful it is in many situations and recreated it. Millón Escudo is a stack of approximately one million Escudo (Shield) Kidou that can block even the most powerful attacks. The downside is, you can't stack Escudo while in battle as it needs concentration from the user to do. And it also takes some time to stack it. It took Kisuke quite a hefty time to stack his shield and he also had to convert it to Reiatsu-Ki from Reiatsu-Mana.
When the cross-shaped wave hit the small shield, the black and red energy engulf Kisuke whole covering his whole body.
When Aika saw this, she became worried, "Kisuke!"
Just as she was controlling the energy from afar, which she isn't very good at yet, The energies suddenly swirled and slowly gathering towards the Escudo which already expanded to 3 meters wide, sending the energies back to Aika.
"What!?" Aika hurriedly ducked to the ground as she saw her attack being returned to her.