Replica

You are reading Replica manga, one of the most popular manga covering in Action, Comedy, Sci fi, Shoujo, Supernatural genres, written by Karakara Kemuri at MangaPuma, a top manga site to offering for read manga online free. Replica has 7 translated chapters and translations of other chapters are in progress. Lets enjoy.
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From Bliss:While trying to find a job, Manji, a for-hire bodyguard, also known as "Akainu (Red Dog)", meets Karu who works for "CARDS". Discovering that Karu's mission is to exterminate the deadly "TOYs", which mindlessly attack any living things, Manji can't help but forcefully tag along to relieve his boredom...Edit: Officially a Shoujo manga, though the artwork and action seems to differ.