Ichigo primarily live the same life as both his heroic counterparts until the Arrancar's first attack on Karakura Town. After Orihime Inoue was kidnapped and taken to Hueco Mundo, Ichigo set off to learn how to control his Inner Hollow the only way he knew how: training with the Visoreds. He was set to battle his Inner Hollow itself, Hichigo, but was overwhelmed and lost his mind and body to his Hollow. He then overpowered the Visoreds and escaped to Hueco Mundo. His level of power was already that of a Vasto Lorde class of menos, yet he still continued to devour every hollow in his path. His power became that of a class seemingly all it's own until he began to transform into an Arrancar on his own. Having reached his full potential as an Arrancar, he immediately dispatched of Grimmjow and Ulquiorra, but was too late to save Orihime as she was killed by Sosuke Aizen. Angry at this loss, he went into a full Hollow form that quickly evolved into a Resurreccion form and killed Aizen, taking control of the Espada and the rest of Hueco Mundo. After hearing of another reality in which he, Ichigo, was still battling the Arrancar and Inoue was alive, Hichigo sided with Akuma and prepared to fight his heroic twin.