Shikama Madoka disappeared after transforming into a "god". His friend Akatsuki Homura took away part of the principle of the circle in order to protect Madoka Shikama's happiness. As part of a human being, Madoka Shikama was separated from the principle of the circle. Because her love for Madoka Shikama transcended despair and hope, she turned into a demon who rebelled against the world.
As the "divine part" of Madoka Shikame that was stripped away, Kanama was accidentally involved in a time and space storm, and came to the world of Detective Conan. He met Rei Fukaya and Kagemitsu Morofushi when they were still students, which changed their fate.
