Nitocris Hashibira (a demon slayer story about a demon)

Earth, beautiful planet. Birds are singing, demons eating humans. Demon slayers killing demons, and other joyful things. How many different stories have been written about majestic demon hunters. But how many stories have been written about demons? A little. It's time to change that. I present to you a story about the new sister Inosuke. She's not just an ordinary demon, she's a demon that can survive without eating people. First of all, I DON'T own demon slayer story, and I DON'T own this cover art. Also, this is my MC's new life with even more nerfed system.