Zwölf, also known as AR-12, has appeared in 1 comic from Kodansha since 2014. Most cataloged appearances come from Battle Angel Alita: Last Order Omnibus.
Collected Edition
Kodansha Comics USA
5 issues
Battle Angel Alita: Last Order Omnibus (2013)
Feb 12, 2014
AR-11
AR-6
Alita
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