Uchiha Obito suspected Tobirama Senju because, among all the ninjas they had tried to summon through Impure World Reincarnation, only Tobirama Senju and Namikaze Minato had failed to appear.
Namikaze Minato needed no explanation. He and Uchiha Madara belonged to different generations and had never even met. Uchiha Obito also knew why he could not be summoned: he had used the Reaper Death Seal, sealing his soul inside the Shinigami.
But no one knew why Tobirama Senju could not be summoned. He had developed the Impure World Reincarnation Jutsu himself, so perhaps he had left himself some safeguard that prevented his summoning.
Uchiha Obito also remembered how displeased Uchiha Madara had been that day. It was not that Uchiha Madara thought particularly highly of Tobirama Senju's abilities; rather, he seemed to have a personal grudge against him.
So when Uchiha Madara mentioned that an old acquaintance he loathed was still alive, Tobirama Senju was naturally the first person Uchiha Obito thought of.
The Deva Path Clone glanced at Uchiha Obito and nodded lightly. Even his mechanical voice carried a chill that Obito could feel. "That's right. That little rat. Heh, to think he's still alive too. Anyone who could develop a jutsu like Impure World Reincarnation clearly had a few tricks up his sleeve."
"I wonder how he came back to life. Could the Rinnegan that was stolen from us have been used to resurrect him?"
Tobirama Senju's sudden appearance had naturally drawn Uchiha Madara's attention. Although Uchiha Madara's strength far surpassed Hashirama
Senju's, capturing Tobirama Senju when he was bent on escaping was still virtually impossible.
Now that Uchiha Obito had noticed something wrong, Uchiha Madara, who was receiving information through the Deva Path Clone, also felt a deep sense of unease. The Animal Path Clone immediately used the