Multi-fandom x tiny reader

The last one

Major time skip to the forming of the Akatsuki.
(Y/n's) POV
It has been a long time since I saw Madara and Hashirama. 80 years I think. I don't know what happened to Madara and Izuna after they helped me flee the Uchiha compound. Apparently my clan had made an alliance with the Senju clan. That meant my clan was officially the Uchiha's enemy. After the Uchiha found out they immediately sought out my clan's compound, and slaughtered everyone in it. Madara and I were at the river with Hashirama when the slaughter occurred. However when we returned to his compound, Izuna immediately ran up to Madara telling him about what happened.

"Nee San! Tou San and the others just left to kill all of (y/n)'s clan. They made an alliance with the Senju and are now viewed as our enemies. Is (y/n) still with you?"

I can't believe this. I'm the last of my clan. I have to get out of here, maybe the Senju clan will help me. How am I going to get there without getting killed though?
"Yes they're right here" (pulls (y/n) out of his shirt) I hope my father is away and isn't here or else I'd be forced to kill my friend. "Izuna where is Father?" I asked anxiously.
"He's gone but he'll be back soon" he whimpered.
This is up to me. "Don't worry I won't let you get killed I'll bring you to the river and then you can go with Hashirama. It sounds like he knows your clan and he will help protect you. I promise. (Y/n) once this stupid war is over I promise I'll come find you and.... a-a-and.... um ...... maybe ....... youcanbemylover!" I looked down at them and took a long last look before heading out to the river where we met Hashirama.
There I let them go and returned to the compound. Sadly I never saw them again, yet. Afterwards Hashirama and I continued to fight until Izuna's death. Before he past he made me promise to find (y/n) again and to start a new life with them. Later I finally agreed to peace and made a village with Hashirama called Konoha. Hashirama told me that he had found (y/n) and took care of them with Tobirama. Hashirama and (y/n) became close but (y/n) left before their relationship could grow closer. I would have settled down and began my search for (y/n), however, I then came to see that within a few generations the Uchiha clan will once again be looked down upon and condemned to live in the farthest part of the village thus leading to same problem we just faced.
I began to study the secret Uchiha stone tablet and after months of hard work I finally discovered how to bring true peace to this world. In order to do so one must be of both Uchiha and Senju cells combined. The Rinnegan is the key to carrying out this plan. Gather the 9 tailed beasts chakras and seal them away into the ten tails husk and finally.... I couldn't figure out what the rest of the tablet said but it did contain the (l/n) clan name and the clan symbol.
I knew that Hashirama would not let me get my hands on (y/n) should I find them so Hashirama had to be the first to go. After a long and difficult battle I faked my loss and my death and went into hiding. One day I will be back, I will find them and make them mine.