Illusion and Betrayal arc

Summary
Soon after Toddbots fall at Gavins hands, the Hogyoku was presumably over-strained and suddenly exploded. Unknowingly, members of the Friendly Discord were subject under Aizens perfect hypnosis. Aizen later confirms that Toddbot was indeed defeated and was an obstacle in his grand plan to sit at Heavens Throne. Joining him was Noble Jackal and a Toddbot clone, Aizen further advised the remaining Friendly Discord to train their Reiatsu. After a series of events and training, the FD is attacked by Aizens crew and swiftly defeated, but soon learn from their defeats, growing stronger then ever.

The arc kicks off when Colton is kidnapped at the hands of Ulqiorra and Grimmjow, which prompts the FD to enter Hueco Mundo, with the aid of the mysterious Kisuke. In order to gain more power for the trip, JT undergoes Hollowfication, allowing him access to an elite and powerful transformation.

While in Hueco Mundo, Akira is kidnapped and Gavin is puked on by the Loli, Nel. While entering the palace, they are separated with JT on his own and Paul and Gavin trapped in a dark hole. Paul and Gavin handle the mad scientist, Szayelaporro, with strategic excellence. JT is left to fight Ulqiorra, and is killed by his superior firepower.

After JT's death, a jealous Grimmjow brings Colton, with his ability to heal heavy damage to revive JT. Grimmjow and JT fight eachother evenly when the Palace is brought to destruction by Aizen leaving Hueco Mundo for the world of the living. Grimmjow is tricked by JTs explosive arms and is left to die in the crumbling palace.

In the world of the living, Aizen begins his march for Heavens entrance, while back in Hueco Mundo, Kisuke urgently sends the FD crew to the real world to chase Aizen and his crew. Sensing their arrival, Jackal sacrifices his clone, Toddbot, to power up Akira. While it was temporary, Akira was able to hold off the FD Group before eventually falling from being overloaded with power. After the battle, the crew made quick haste to Aizen and Jackal, who was waiting for them. In a battle that ended as quickly as it started, the FD crew is swiftly defeated and is issued one final chance by Aizen to improve their strength or be destroyed next time they meet.

Kisuke, having witnessed their crushing defeat, has decided to embark the crew in Dangai training, which drastically boosts their abilities. Colton and Paul chose to improve their Reiatsu, JT chose to boost his physical strength. Meanwhile during their training, Aizens second in command Jackal has betrayed him, attempting to steal the Hogyoku but ultimate failing, a clone of Jackal falling instead of the real Jackal.

After intense Dangai training, the crew is transported to Aizens location, drastically more powerful then before. The final battle begins with the crew wearing down Aizen slowly but surely before he ultimately succumbs to a combined offensive. Aizen having been greatly weakened triggered an Ink trap set by Jackals Zanpakuto, sealing him in the Hogyoku which grant him his power.

In the bonus chapter, it is revealed that Gavin did infact survive the palace collapse, after being vored by the worm Bawabawa.