The final chapter of the manga written and illustrated by Chika Shiomi, Key Jack: Keep Alive, was published in the August edition of the Mystery Bonita magazine by Akita Shoten.
Shiomi began publishing the manga in Akita Shoten's Mystery Bonita magazine in 2018. The publisher published the second compilation volume on January 16 and will publish the third and last in October.
Shiomi also wrote the Key Jack manga that she published in 1999, followed by the Key Jack: Teenage Edition manga in 2011 and Key Jack: Deadlock in 2016.
Source: Mystery Bonita August issue
© Chika Shiomi / Akita Shoten
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