Minato Ninomiya is a detective for the Kanagawa Prefectural Police. When he was a child, his parents died. His life became a mess and he could not trust people, but he then met Yuka Nanami and developed a romantic relationship with her. Due to Yuka, Minato was able to trust people again. After five years into their relationship, Yuka becomes pregnant. Minato vows to make Yuka and their baby happy, but Yuka suddenly dies in a mysterious accident. Minato tries to find the truth behind her death and finds a mysterious app named Code, which can make any wish come true. Meanwhile, Kazuki Shiina is a magazine reporter who chases after the mysterious app Code.
