My best friend (Mitsuki x reader)

"Mitsuki?" You asked.
"Yeah?" He replied.
"Do you think we will best friends forever?"
"I would believe so... since I won't ever forget you, (Y/N)..."
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You are a old best friend of a boy named Mitsuki and you have been in a village called the land of Iron for the past 5 years. You two are the same age and you both are very different, but similar. You had graduated every single academy out there by the age of 6. You have the (OC) 20-tailed-beast inside of you and nobody knows. Well... At least Konoha doesn't know. Your mother had died a hour later after you were born of shinobi killing her and your father always hated your presence because you were so like you mother. The truth was the shinobi were actually from the hidden leaf, but wasn't sent by the Hokage or anything like that. They were told to do it in secret. Since you mother had taken care of the 20-tailed-beast like a part of her family, people in Konoha started to hate her even though she was always so gentle and kind always. You want revenge on the shinobi and since the 20-tailed-beast or so called the Queen of the Amauters (BTW it is just a tailed beast I had came up with and you will understand the background of the tailed beast later) showed you which shinobi killed your mother. You had known Mitsuki for all you life and Mitsuki was the same. You two were like a family and a permanent one. Any other friend you had was in a temporary family group. Why do you two seem so different, but so similar? Find out in the story!

Cover doesn't belong to me, it belongs to @Alexalawlietackerman