After the completion of Spiral - Suiri no Kizuna, author Kyou Shirodaira and artist Eita Mizuno began Spiral - Alive, a prequel
and spin off of the original series. It is currently on-going. Several characters from the original series return, including
Kiyotaka, Kousuke, Ryoko, Kanone, and Madoka.
Spiral - Alive is centred around a girl named Imari Sekiguchi, who falls in love with Shirou Sawamura, a boy who wants
to become a detective. However, before Imari can confess her love to him, he unexpectedly quits school in order to pursue
Kiyotaka Narumi. Things become complicated when she discovers he is currently dating Yukine Amanae, a beautiful girl at school,
and both are unaware that Amanae is actually a reluctant murderer. Meanwhile, Toru Saiki, a member of the Police Department's
First Investigations Department, investigates the mysterious murders connected with Amanae and is unwilling to bring in Kiyotaka,
believing that Tokyo's greatest detective is more demonic than divine. The three become involved in events that are mysteriously
connected to the Blade Children.

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