They could've never met.

A boy who shouldn't even exist

A boy born of pure darkness and used for personal gain

A prince running from his true destiny

And a boy whose heart was broken for an apocalypse.

It was destiny that the boy with the heart and the prince met.  They were brothers in their minds.  Then the boy of darkness and the prince met after the boy with the heart disappeared.  Years later they left each other, then meet again and fell in love.  Then through the death of the prince the one not meant to exist was born, with no heart.

Life can take it's turns in it's own game.

It's turn this time consisted of making some lives better, while others suffered with the consequences.

(This is part of The Boy of Heart, which is a Kingdom Hearts OC story (and cringy af).  Adam and Daxam (let's just say Adam made a little fun of Organization XIII for their very much original naming system while still giving personality to the members) are my OCs, and yes, Ventus and Vanitas are two of my favorite characters in the game.  Go ahead and judge me.)