The Uchiha - Senju Immortal

[Author Note: Hello again, my dear readers, the end of the last chapter and the start/middle of this chapter focused on something different from the MC but sometimes I'll make it like this to show the background, hope you guys don't mind it, haha]

PS: The next chapter will be posted at the same schedule as this chapter tomorrow, that's, 24/12/2019.

The Senju Clan Great Elder finally arrived at the Uzumaki Clan, they're distant relatives of the Senju Clan and their specialty is Fuuinjutsu, a unique characteristic of this clan is their incredibly high amount of chakra, vitality and their red-colored hair.

Suddenly noticing the arrival of a stranger, the Uzumaki Clan Leader was on alert and quickly appeared on the Uzumaki Village Gate, seeing that the person seemed familiar, he searched on his memories before a smile appeared on his face ''Oh, what brings the Senju Clan Great Elder on our Uzumaki Clan?''

The Uzumaki Clan Leader led the Senju Clan Great Elder to his residence and offered him tea, taking a sip, the Great Elder said his objective ''Uzumaki Clan Leader, I won't beat around the bush, as you know, the Yuki, Kaguya, and Hozuki Clan is preparing to go at war with both our Senju Clan and Hyuuga Clan, I'm here to ask you to ally with us in this war, if you accept, you can state your requests!''

The Uzumaki Clan Leader looked at the Senju Clan Great Elder and smiled gently before saying ''You're joking with me, Great Elder, our Uzumaki and Senju Clan are distant relatives, it's only a matter of fact that we help each other, right?''

'This old fox...' Senju Clan Great Elder thought while maintaining a smile ''Of course, haha, however, our Senju Clan obviously can't let you ally with us for free, we feel that it's unfair so if you have any request, state it, Uzumaki Clan Leader!''

Seeing that his chance came, the Uzumaki Clan Leader sighed before saying at a low pace ''Sigh... Great Elder, seeing the Senju Clan sincerity, I can only agree, I got to know that you had a son, Senju Shiro, right? I also heard that he's the most talented genius ever seen in your Senju Clan, hm?''

A thought passed on Senju Clan Great Elder before he nodded, seeing this, the Uzumaki Clan Leader smiled widely before continuing ''Hm... I have a daughter the same age as him, she's called Mito Uzumaki, if I'm not wrong, he's about six years old, right? Well, that's good, little Mito is almost six years old too, to show our sincerity, we can marry her to Senju Shiro when both of them are 21 years old, with this, our alliance is settled, how?''

Senju Clan Great Elder didn't want to marry his son without his consent but seeing that the Uzumaki Clan Leader would only agree if he accepted, he thought 'Little Shiro, I'm sorry but I believe you will accept this decision as it will be beneficial to our clan..'

''Haha, I also heard rumors that Mito Uzumaki is very talented, little Shiro will probably like her, no need to worry, Uzumaki Clan Leader, I hope our alliance can be kept for a long time'' The Senju Clan Great Elder said with a smile before going away while the Uzumaki Clan Leader started to gather his troops to help the Senju Clan on the war.

Meanwhile, all of their conversations were heard by a certain figure on the shadows 'As I thought, this Senju Shiro is a problem, the Senju and Uzumaki alliance wasn't on my calculations, tch, one more problem to revive you, dear mother, however, don't worry, with their reincarnations, I will find a way' the figure thought before vanishing from the spot, merging with the shadows.

A few days quickly passed as all of the six clans gathered their troops, waiting for the incoming and inevitable war, on the Uchiha Clan Leader courtyard, a kid with pitch-black hair, brown-colored eyes, and delicate facial figures were training as lightning flickered on his hand, a smile appeared on his face as he said ''Chidori!''

His speed suddenly increased a few times, his brown-colored eyes color changed to blood red-colored eyes as two-tomoes spun inside it, thrusting his hand towards a tree, a hole was made as the tree was pierced completely.

''Hahaha, I finally succeeded!'' I said out loud as I finally managed to do this jutsu, it would help me on the war that's coming, I heard of it only recently, sitting on the lotus position, I started to gather and replenish my chakra, after around an hour passed, I was full of chakra again, nodding to myself, I went towards Uncle Tajima, that was on the side, playing with little Madara and showing him shurikenjutsu before saying ''Uncle Tajima, please bring me back to the Senju Clan!''

Before he could say anything, little Madara yelled ''No, nii-san, please don't go, stay here with me, please!'' my confidence waved a bit before it became firm, I know that little Madara is more intelligent than normal kids of his age and know how the war is, tapping his forehead with my fingers, I said ''Don't worry, I'll be safe and after I return, I'll show you cool jutsus, 'kay?''

Little Madara nodded while wiping his tears, Uncle Tajima had a hesitant expression but knew that I wouldn't abandon my clan so he just nodded and led me to the Senju Clan Village before going back without saying anything, feeling afraid that he wouldn't be able to let me go to the war again.

The troops of Hyuuga Clan, Uzumaki Clan and Senju Clan were stationed one at the side of each other, I arrived in front of my father and said ''Father, I'm here to assist the clan!''

My father nodded before looking afar, where the Yuki, Horizon and Kaguya Clan troops were stationed and saying in a calm but loud tone ''Attention, everyone! They united because they feared us, if they fear us because of our power, we should show us why they should just keep their fear in their hearts, never to go against us again, today, we will drain the land with the blood of our enemies!''

The Hyuuga and Uzumaki Clan Great Elder also said somethings before all of the troops said in unison ''Kill!'' and advancing forward, a huge killing intent enveloped the air as the war started!