(Written in third person.) "You shouldn't, at the very least, steal your buddy's wife."
Synopsis: I have an identity card System. It lets me inherit the abilities, memories, and identity of whichever card I draw.
After my last draw went horribly wrong and I got locked in a Bad End room, I ran away and chose a new identity card:
[SR* Uzumaki Mito, Nine-Tails Jinchuriki] - "You are a tailed-beast vessel married off to the Senju clan, a prisoner forever cut off from your homeland, a servant and sacrifice to the Will of Fire. You willingly let yourself be killed for the sake of an illusory love and a belief." (*Description adapted from Mito's character guide.)
…
Although the description sounds pretty tragic, on closer inspection, this card is actually quite powerful.
Uzumaki bloodline! Nine-Tails Jinchuriki! What a protagonist-worthy setup!
As long as I avoid the two protagonists who dominate this era, I'll be free to go wherever I please~
I loaded the card and inherited its memories, only to find myself arriving at Senju Hashirama's funeral, just after his death.
…Wait, this is actually a pretty good time to show up!
Uchiha Madara and Senju Hashirama have both died in their final battle. As the Nine-Tails Jinchuriki, who in the entire shinobi world can control me?
So I picked up a beautiful spirit named Nana, shaped him into a shikigami, and ran away from Konoha to start my happy life.
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What the heroine doesn't know:
1. The protagonist of this era isn't dead yet. Uchiha Madara, who has just awakened the Rinnegan after obtaining Wood Release, is hiding in the shinobi world and recovering from his injuries.
2. The stern little uncle she barely pays attention to, Senju Tobirama, is actually the second husband named in her marriage contract, since the younger brother inherits after the elder brother's death.
3. The beautiful shikigami named Nana is actually Uchiha Izuna, and he still has all his memories.
4. She thinks she doesn't know Uchiha Madara well, but Madara has had his eye on her for a long time. Senju Hashirama used to quietly keep him at bay every time.
Hidden information: If the heroine dares to draw [SSR* Otsutsuki Kaguya], the shinobi world's guardian, the Sage of Six Paths, will definitely resurrect this generation's Ashura successor (Senju Hashirama), then order him and Indra's successor (Uchiha Madara) to work together to kill her.
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Explanation:
The heroine drew the Mito card from the original A-world and knows what Mito from A-world knew. But this is the B-world, where she is called Mito.
(The story clearly hints that she changed the B-world timeline long ago. Everyone has known her as Mito from the very beginning.)
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Pick your ship. The author is a fan of everyone in the Founding Era.
Theme: Love is the greatest magic