Aizen finishes addressing the intruders of Las Noches. He then calls for the top three Espada (Coyote Starrk, Baraggan Louisenbairn, Tier Harribel) and their Fracción to accompany him to Karakura Town and leaves the 4th Espada, Ulquiorra Cifer, in charge of the castle while he's away.
With that, Aizen, along with Gin Ichimaru and Kaname Tōsen, leaves via Garganta to the Human World, where the Shinigami are waiting for them.
It is revealed that Karakura Town is currently in Soul Society, and right now they are in a fake Karakura Town, which causes Aizen to change his plans to simply defeating the Gotei 13 and making the Ōken in Soul Society.
Inside the fake Karakura Town,
Aizen, after coming outside from the gigai, was ambushed and trapped by the shinigami captain Yamamoto.
Meanwhile, Baraggan Louisenbairn takes command since Aizen is locked inside Captain-Commander Fire Prison.
Lieutenant and Captain fought with the three top Espada and their subordinates.
Captain Hitsugaya encountered Tier Harribel, Captain Sui Feng fought Baraggan Louisenbairn, and Captain Ukitake and Shunsui face off against Coyote Starkk, the Espada number one.
After battling with all their might,
The captains of the Gotei 13 are exhausted, but for the most part it seems as if they have won.
Tier Harribel is frozen within Captain Tōshirō Hitsugaya's Hyōten Hyakkasō, and Baraggan Luisenbarn seems to have been destroyed by Captain Suì-Fēng's Bankai.
Suì-Fēng can barely keep herself airborne; Lieutenant Marechiyo Ōmaeda tries to support her, but she angrily declines.
A bit disgruntled, Ōmaeda says his captain should humbly accept her subordinate's kindness but dares not repeat it to Suì-Fēng's ears. He says Baraggan was frightening and asks her if she doesn't agree, but she says it's all in the past now, nursing her severed arm.
The one fight still being fought is between Captain Shunsui Kyōraku and Coyote Starrk.
Captain Jūshirō Ukitake intervenes and appears to have fired a Cero at Starrk.
Kyōraku intends to protest Ukitake's intervention, but the latter tells him he won't accept any arguments, since Starrk's Resurrección is essentially a fuse between himself and Lilynette Gingerbuck, which makes his assistance a battle of two-on-two.
Ukitake says it seemed Kyōraku was unwilling to use his Bankai. Kyōraku says he was just about to use it, but Ukitake asks him not to, as his Bankai is not something that should be used where others can see it.
Ukitake adds that his own abilities should be more useful against an opponent such as Starrk. Starrk asks Ukitake how he was able to fire a Cero at him.
Ukitake replies that he has no idea and suggests Starrk shoot again if he wants to find out. Starrk agrees and takes aim at Ukitake, but Lilynette tells him not to shoot as it is an obvious trap. Starrk ignores her and shoots the Cero, and like before, the Cero is returned back to him. Despite Lilynette's protests, Starrk fires a third Cero, which is also returned.
Starrk uses Sonído to get behind Ukitake but does not attack. Instead, he analyzes Ukitake's ability as the power to absorb his opponent's attack and return it, using the charms hanging from the cord to readjust the speed and pressure of the attack just enough to throw off the opponent's timing.
Soon the battle heated up among them.
As the two captains brace themselves for Starrk's next move, an enormous Garganta appears across the sky.
All members of the Gotei 13 who are still conscious stare at it with disbelief. Ukitake asks if it could be reinforcements for the enemy, but Kyōraku replies that since they are already fighting the top three Espada, that's not an encouraging idea.
A strange-looking Arrancar steps out of the Garganta, identified by Starrk as Wonderweiss Margela.
The new arrival communicates by undecipherable moans, but the creature behind him follows his commands just the same... a huge mass of a Hollow with a single eye in its head and Gillian masks as his fingernails.
Captain Sajin Komamura remembers seeing that eye before, in the Garganta through which Aizen escaped Soul Society.
Ōmaeda wants to run away but is silenced by Suì-Fēng. Wonderweiss' blank stare locks on Ukitake, and suddenly he is behind the captain, piercing him through the gut with his hand.
Kyōraku attempts to come to his friend's aid, but Starrk presses his pistol against the captain's back and fires a point-blank Cero at him.
He apologizes, saying the fact that Wonderweiss arrived means Aizen's time is growing impatient. Both captains fall unconscious to the ground, much to Captain-Commander Genryūsai Shigekuni Yamamoto's horror.
Wonderweiss then lets out a high-pitched screech. The screech shatters Hitsugaya's Hyōten Hyakkasō, freeing Harribel.
Wonderweiss' second screech clears the smoke near Suì-Fēng, revealing Baraggan to not only be alive but also unharmed from the captain's Bankai.
Down in his makeshift sickbay, Lieutenant Izuru Kira begs Captain Komamura to go and join the fight, as the survival of the lieutenants means nothing if everyone else is defeated. Following Wonderweiss' command, the huge Hollow still standing within the Garganta blows at Yamamoto's Jōkaku Enjō, putting out the flames and freeing Aizen, Gin, and Tōsen.
Gin muses about the smell of the monster's breath, saying this must be what is known as the "stench of death." Aizen says that is perfect, since the stench of death is a fitting odor for what's unfolding before them.
Seeing this, Kira is filled with despair, saying the Shinigami are truly doomed now.
...