Double Black, in an even darker world

Prologue ; beautiful destruction

"O grantors of dark disgrace, do not wake me again." 

The boy that stood before Dazai was chanting. His normally doll-like features changed into a wry grin as he removed his black overcoat and hat, revealing his light auburn curls. His hands and even the pupils of his normally heaven blue eyes turned that dark colour. The ground beneath his feet cracked and started to split open with a terrible loud noise, forming this crater-like hole beneath him. Black orbs started to form around the boy, that currently looked more beastly than human. Dazai felt as if chained to the ground, every muscle he tried to move unbearably heavy. The orb like shapes started to suck everything in. Leaves, branches, builders, everything got swallowed up by those black holes formed by the small framed boy.

"So this is your true form then, hm." 

The brunette hummed, eyes still fixed on the beauty of it all. Everything around them shook, feeling much like an earthquake, especially when he boy started to throw these orbs. The altered gravity didn't seem to bother him at all, as he jumped high and aimed right next to Dazai. Dazai flew through the air and with a terrible impact, he hit a tree. 

He confusedly blinked a few times before he shakily got up again. The spot where he stood a few seconds ago, now completely unrecognisably damaged. Dazai felt the blood dripping from his nose, the collarbone he just shattered due to the huge crash on the tree painfully throbbing. 

He whistled through his teeth, his eyes wide as he saw that the boy was still raging on. He simply destroyed everything in his path, letting out demonic laughter whenever a black orb hit the ground. The ground was shaking uncontrollably, all the sunlight seemingly sucked in by the black holes and the demonic chuckle drowned out by the loud bangs that formed these giant holes. Dazai felt rather small and weak next to the boy he usually teased for his feminine looks. He couldn't help but stare, open mouthed, to the spectacle that was Chuuya Nakahara's ability at its most powerful. Then he realised -

He had never seen anything so beautiful.

Dazai noticed that Chuuya's face was dripping in a dark liquid. 

Blood?

Dazai arduously managed to get closer to him, seeing that it was indeed blood dripping all over Chuuya's feminine features. It came from his nose, his eyes, his ears, everything was covered in the crimson liquid. An ice cold feeling of anxiety washed over the brunette, at this rate Chuuya's body would just be consumed by rage. 

He activated his own ability, using all his strength close in on the still demonically laughing boy. The heavy force of gravity pulled on him more and more and eventually he had to continue crawling, his sore body fiercely protesting. Then finally, finally, one of Chuuya's now black ankles in reach – he grabbed it, quickly draining the boy from his powers. 

Dazai sighed relieved when his Chuuya's boyish body collapsed limply on the ground before him. He tiredly crawled next to it and checked for a pulse. Once he knew that Chuuya was just unconscious and not dead, he let himself fall next to him. He laid there, too tired to drag the boy and himself back to the mafia and not quite ready to head back just yet. 

He deeply breathed in, inhaling the smell of the destruction the small framed boy just had caused. He couldn't help but smile at the thought of what fun he and Chuuya would have in the future. 

This should be interesting.