The First Kudo Child (Detective Conan. OC x Akai Shuichi.)

Taiba Sachina is just a normal girl. As normal as an otaku can get. She, along with her elder brother absolutely adored anime and manga, especially Detective Conan. Sachina was, not only obsessed with the anime, but also with fanfiction about DC. After reading so many, she dreamed to be in the world as Kudo Shinichi's older sister.

What happens when her dream comes true?

After getting into an accident, Sachina is given another life, only this time, it's in her and her brothers favourite, Detective Conan. In the after life, she was given the chance to chose what she wanted. She decided to be a detective in the FBI and to be able to help, what she wanted to be, her little brother, Kudo Shinichi or Edogawa Conan. She also wished to be the best and most able FBI agent.

Kudo Sayuri was born 10 years before the protagonist, Shinichi(her parents are 10 years older than in the anime so just add 10 years to their age). She was born super smart due to her past life.

What happens when she meets the man that infiltrates the Black Organisation, Akai Shuichi?