Aura - Inosuke x reader

Master

(Background story)
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It was just any other day, nothing was different. My mother was day drunk, crying about my father who was off cheating with who even knows anymore, he came back maybe two nights a month. I don't know why she doesn't leave him, i was cleaning and taking care of my little brother. This was a daily routine, nothing was different. I left for work making sure my brother knew to run home immediately after school. I work doubles, its exhausting but it pays the bills, any money my mother makes goes into her bottles. I came home at the normal time, but nearly the house something was off. The house looked the same as always and the lights were on but there was a dark aura around it telling me not to enter. I ignored it, I needed to make sure my brother ate.

Nothing could have prepared me for what was inside. It was my father, surrounded in that dark aura, covered in blood. My mother was crying in the corner begging him to stop. Thats when I saw him. My poor sweet little brother who smiled at me just this morning and promised to wait up for me. My father faces looked monstrous, and he was eating him. I stepped back and run into the kitchen as that creature who looked like my father turned to my mother and started devouring her. He completely ignored me, that gave me a chance, I didn't hesitate.

My parents were horrible excuses for parents, my little brother was dead, he killed him. He killed my mother too now, she might have deserved her fate, but I will make sure he deserves his. I reacted so fast it was like i was in a trance, all that anger, that pain, that fear, pulsed through my body and the knife I had grabbed to defend myself shattered against my fathers neck. Why couldn't it cut through? That made him notice me, he threw my mothers body aside turning to me and I ran, he caught me easily throwing me against the wall.

Just when I thought it was over a long sliver of pink danced in the air, almost like a ribbon. Originally thats what I assumed it was but when it cut through my fathers neck I knew it was something different. A girl with pink hair landed next to me quickly looking over my injuries.

"Are you alright?" Her tone was sweet considering she had just beheaded a monster. There was this strange pink arua around her, it felt like a warm hug honestly.

"Thank you pink goddess-" was all I managed to say before I blacked out.

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Ever since I met her back then and she saved my life I've been training my hardest to repay her kindness. The nice boy she left me with introduced me to my master, and I've been with him training for two whole years. When we first discovered that I had a unique form of breathing style all we tried to do was understand how it works. Now I've mastered it and even created different forms, I've been told each breathing style originates from one ultimate breathing style, and unique styles are usually tied to the known styles. Mine is closely tied to love breathing but its very different.

First form is self aura, it enhances me. But second form is aura self, it confuses enemies on where I am but making them think theres two of me. Third is aura relm, any enemies that steps onto the relms boundary I instantly know where they are. Forth is a shield, fifth enhances my sword, sixth lets me enhance anything i touch besides my sword including people, seventh lets me effect an enemies mind, and eighth makes a double of someone they know. Ninth is my final form and not something I can control yet, all my aura all my emotions channel into my body giving me an epic boost but it doesn't last forever, it completely drains my body and if I hold it for too long I won't survive, very much a final move and only if my life is on the line.

Creating forms takes years, I had help since my master also has a unique breathing style and it still took me two years. But I was finally ready for final selection. When the time came he sent me, before I left he looked almost worried, but he wouldn't send me if I wasn't ready. I can do this, I can become a demon slayer and repay the girl who saved my life, in more ways than one.

Final selection isn't horrible at first, I even run into a very nice boy after the first day and we help each other out, his name is Tanjiro and he's doing this to hopefully find a cure for his demon sister. Her being a demon makes me hesitate but I would have tried if my little brother was the demon too so I can't say I blame him. After meeting him it only gets harder but I like a challenge and before I know it final selection is over, we both survived.

When the time comes to choose our ore I choose the rock that called out to me, it was almost like it had an aura around it already. After that we get our crows then we're sent home until we get our nichiri swords so we can take on demon slaying quests. It feels like it takes forever but my sword maker is very nice when he arrives. After I draw my sword it turns an soft purple fading into a blue towards the blunt edge of the sword, its absolutely beautiful. The sword maker looked happy and eventually he left. It didn't take long for my first mission to come, saying goodbye to my master is hard but after a long and sad goodbye I set off to my first mission, I hope this goes well.