Kakuzu couldn't play both sides. The moment he set foot in Amegakure, Madara Uchiha would put a leash around his neck.
He was from the Warring States Period and understood Hashirama Senju and Madara Uchiha's personalities all too well.
If Takigakure had ordered Kakuzu to assassinate Madara back then, he might have defected on the spot.
Madara was ruthless and merciless. In his eyes, human lives were worth less than dust.
He was a demon of war, a god of calamity who brought slaughter and strife.
Hashirama Senju, on the other hand, was a benevolent god. At the first Five Kage Summit, Hashirama had actually bowed his head to the Kage of the other villages.
If you had to choose between Hashirama Senju and Madara Uchiha as a partner, most people would choose Hashirama Senju.
Only a lunatic would pick Madara Uchiha as a teammate.
Kakuzu had survived after attempting to assassinate Hashirama not because he was fast enough to escape, but because Hashirama was kind.
In the Original Work, after the Infinite Tsukuyomi was activated, Tobirama wanted to bring Madara back with Impure World Reincarnation to question him about what had happened. Hashirama worried that the technique would cost lives.
Even in such a dire situation, Hashirama was still concerned about human lives. That showed just how kind he was.
Hashirama's greatest sin was probably stabbing his own friend in the back. At the Valley of the End, he had killed Madara for the sake of the Leaf Village.
He had lived with the guilt ever since, and never used Ninjutsu again until the day he died.
Every reincarnation of Asura was a kind-hearted person.
Kakuzu acted just like Madara, but he would still choose Hashirama as his partner.
He hated betrayal. Money would never betray him, and as