who; Senero. Obviously.
what; Heartrape.
He had lost Pocketwatch to her. He remembered her hands plunging into his chest, his heart exposed to the forces of light and darkness. He remembered dismissing his Keyblade, only to see her rip it right out of his chest, and effectively taking his heart along with it. Stunned, Senero collapsed to the ground, his body numb.
And then, he was all alone.
It was unbearably lonely. Where his heart once was, his chest ached. He felt raw and naked before the world, as if he had been born mere moments ago. He felt hollow and empty as his mind raced, screaming for Pocketwatch, screaming for his family, screaming for Ithil, screaming for someone, anyone, to come find him.
But no words could escape his lips.
Unprotected from the darkness, he could only watch in horror as the shadows plunged into his body, filling the hole where his heart once was. He could not scream as he felt the darkness creep inside him, molding him, transforming him. It was most horrifying and liberating feeling Senero had ever experienced.
And then, Senero died.
In his place, someone else was born.