[Blue Archive x RWBY Crossover!] Shinobu Sawada is the Loner High School girl that she lost her parents in car accident, she doesn't have any friends like anyone else, and her favorite video game is Blue Archive and favorite show is RWBY but the recent volume of RWBY is slowly dying. One day, Shinobu head to shop and buy a drink before a robber arrive and rob the store, he hold a child as a hostage and saving the child from robber but the Robber kill her before she kill him off. At least she kill the Robber for good. But when she in the black void realm, she meet... Monty Oum and Kim Yong Ha, the told her that she was chosen to protect and change Remnant. Shinobu accept it as she send to Remnant and reincarnated as Shiroko in Remnant. Now she will face the Grimm and White Fang, she got help from Team RWBY and Team JPNR and some of familiar characters. But she will facing the truth, hard, and struggle in her life against friendship of Team RWBY