Luffy x Demon! Reader

I'm So Sorry

     Several months later still with your new friends and heading to new adventures. But today was never going to be the same.



The whole crew was under attack by some bandits that came for either money or hostages. The leader of the bandits was not an ordinary guy.....
The battle had started but was ended quickly because they had help powerful fighter like you. All that was left was the leader. "ALRIGHT LET'S FINISH THIS THING!" Luffy had yelled "No wait Luffy that one is not like one I have seen. He's a demon." you whispered to him "What? What are you saying?" He said back. "I'm saying maybe to let me handle this ok." He nodded to you in response . Your (h/c) hair started to glow and your eyes became a darker shade then your normal (e/c). You then grew claws and fangs. The man knew what you were and did the same but his hair went a strange black and eyes totally red claws and fangs longer than yours.

You two then started to fight it lasted for a while but you two stopped to heal. "I see your no demon I have had to fight. I'm surprised that you have made it this far you weakling." You then remembered that is what your sister had said to you before she had left you to die. You then unclenched your fist and tears formed in the corners of your eyes. "Hey (Y/n) are you ok." Luffy said running to you. The man had an evil smirk on his face he was going to kill Luffy. You turned to Luffy knowing just what that man was going to do "No Luffy wait!" The man had shot him with a black ray of darkness, Luffy dodged right in time but it had pierced his shoulder. Luffy had let out a agonizing scream.


There you had saw him lying there with a hole in his shoulder. "N-no Luffy." That's when you had snapped. Your eyes turning red fangs and claws sharp enough to cut anything. "How dare you?" You said in a dark voice as you turned to the man. He tried to attack you but you quickly dodged it. Then you went full on rage. You began to attacking him left and right until you were done with him. You then had a evil smile on your face,you began to laugh. "You really think that i'm weak? Look at you lying there you pathetic. WASTE. OF. TIME!!!!" You said as you slowly killed him "I'm done with 'playing' with you now." You then threw him in the air and gave him the most powerful blast you had. "Sun Light Beam!" You shouted and a powerful yet beautiful ray of light was blasting towards him. He was nothing but ashes when it was over.

Luffy tried to get up and check on you but when he was just a few steps away from you you turned back to him still in demon form. You ran at him and pined him to the ground you were about to kill him when you looked deep into his eyes. "N-no what have I done? I'm so sorry." You said as you let him go. "(Y/n)? Are you alright-" But before he could finish you flew of tears still in your eyes. "(Y/n)!!!" Luffy had yelled trying to get you back. But you were too were too far away to hear him.