Somehow, Obito manages to draw an enormous power from within himself, using Wood Release: Cutting Technique, and while manipulating his new Mangekyō, seems almost impossible to beat. Kakashi passes out, and Obito proceeds to massacre the Kiri-nin. Rin's death awakens both their Mangekyō Sharingan. He arrives just in time to see Kakashi run his Chidori through Rin's chest with Rin whispering Kakashi's name before she dies. On his way to the battle site, Obito has a vision of Rin through his empty eye-socket but simply dismisses it as nothing. Madara tells Obito he will properly thank him in the future, and that Obito will come back to him despite Obito insisting that he's leaving for good. Obito draws power from the Demonic Statue of the Outer Path to break the rock.
When Obito fails to break through the rock blocking the exit, Guruguru offers himself as an armour for Obito. One day, White Zetsu arrives with news of Obito's teammates being in danger, surrounded by Kirigakure-nin.
Through months of intense rehabilitation while also recalling his time training with both Kakashi and Rin, Obito recovers and gets used to his new artificial body parts including his new right arm. Obito is tended to by two artificial humans, who help in his rehabilitation, while also telling him about Madara's goal and annoying Obito with potty humour.
' I'm in Hell' ( オレは地獄に居る, Ore wa Jigoku ni Iru) is episode 345 of the Naruto: Shippūden anime.