The Chained Enigma: Brotherhood

Even the strongest warriors expose their weakest moments. He was broken, betrayed, traumatized and most importantly, his story ended with a bathetic twist. He had nothing left except for a chained curse that followed his soul into the afterlife.

But now as the reincarnated Y/N Ayanokoji with retained adult cognitive maturity, the lost twin brother of Kiyotaka Ayanokoji and the neglected son of Professor Atsuomi Ayanokoji, will Y/N have a chance at a slightly better... or worse life?

Having escaped from his father's attempt at getting rid of him after birth with the help of a few doctors and his Mother, Mika. He is taken back to America by his mom to reunite with her true lover, also named Kiyotaka.

Soon after, Y/N Kusarishima (surname change because of new father) discovers that the curse on him in the form of chains which only his blood relatives can see, may partly be a gift as he realizes that one power he has from his previous life stayed: Foresight.

With that power comes both slow but progressive mental destruction and an opportunity for change, and when his occasional nightmares tells the prophecy of eventual world destruction, Y/N becomes determined to change that potential future through the power of the butterfly effect... and brotherhood. But little did he know that he's bound to a whole adventure ahead of him, with two worlds colliding and being interconnected to one another in ways he never expected: Strange encounters followed by a sense of déjà vu, a chance for vengeance, a whole social hierarchy that needs to be climbed and a sweet thing called love he never thought he'd understand.

So with that, the game is on. Whether it's going through any means to reunite with his lost brother, taking savage revenge against his father or doing things his own unconventional ways, Y/N Kusarishima will be ready.

Even so, can a single boy really change the future of the world?

My goated editor: @MikuniTheStriker, I can't thank him enough for all he's done.