A story where Nakahara Chuuya has a younger sister, y/n. Y/n and Akutagawa have met each other when they were young and meet again when they both find out that the other has joined Port Mafia. However, their encounter since they were young wasn't the best and y/n developed a hatred towards Akutagawa. It grew more when they were put under Dazai's command and competed against each other to receive Dazai's recognition and acknowledgement. But life as enemies changes... Who knows what happens? Apologies for any grammatical errors or just any mistakes! Credit to @art._by.someone on Instagram for the cover!!! I do not own any of these characters or Bungou Stray Dogs!