The Uchiha's Hope [Naruto fanfic] Book 1

Disclaimer
I do not own Naruto or any of the characters except Mamoru and Akari.
Sorry if this story makes no sense or is slightly cringe worthy.
Please do not judge or hate this is my first fanfic so no hate.
Thxxx enjoy;]

Sasuke has an older twin brother Mamoru Uchiha, son of Fugaku and Mikoto Uchiha and brother of Itachi Uchiha; who strongly resembles their cousin Shisui Uchiha. Mamoru awakened the sharingan at the age of 5 earlier than any other Uchiha. he is a natural born prodigy - nearly anbu level but refuses to join their ranks just yet. He has a stronger relationship with Itachi rather than Sasuke, he has a forgiving yet protective nature for the ones he loves. He has a strong shell that only 4 people have broken through.
Then there's Akari Namikaze Uzumaki daughter of the esteemed 4th hokage Minato Namikaze and Kushina Uzumaki - she has minato's name because she was 'named after him'. She strongly resembles Kushina but has Minato's kind and caring nature, but when angered she can be as destructive as the 9-tails himself, who she has a great friendship with and control over. She can master nearly any jutsu due to her vast chakra source and is a magician when healing wounds, even though she is small she is nearly as powerful as Tsunade.

What will happen with these two souls? While they stick together? Or go separate ways? What will they do when they are bound by the red string of fate?