I'm in Hell

Obito is tended to by two White Zetsu during his rehabilitation, annoyed by their interest in humans' bodily functions while learning more of about Madara's goal of a world where no one suffers. The recovering Obito soon trains himself while adapting to the prosthetic limbs that Madara developed from the White Zetsu. One day, White Zetsu informs Obito that his team-mates are being attacked by Hidden Mist ninja. When Obito fails to break through the rock blocking the exit, the White Zetsu known as Tobi offers himself as armor for Obito to wear and obliterate the rock by drawing power from the Gedo Statue. Despite Obito insisting he will not come back, Madara says that he younger Uchiha will show him proper gratitude when he returns. Obito ignores a vision of Rin he felt through his empty eye-socket while racing to the battlefield, adamant that he and Kakashi will be able to use their Sharingan's full potential while Tobi explains that Obito might have gained additional power from being infused with Hashirama's cells. Obito arrives to find a dying Rin impaled by Kakashi's Chidori as she utters Kakashi's name before hitting the ground, dead. As Kakashi studies Rin's body, both he and Obito unknowingly awaken both their Mangekyou Sharingan. Kakashi passes out from exhaustion while a bereaved Obito slaughters the surrounding Mist ninja while avoid their attacking, finishing the rest off with Wood Style: Cutting Sprigs. Approaching Rin's body while standing in a pool of blood, Obito concludes he is in hell while mourning the death of the girl he loved.