Monthly Sunday Gene-X (月刊サンデーGENE-X Gekkan Sandē Jenekkusu?), often abbreviated as Sunday GX (サンデーGX?), is a Japanese seinen manga magazine published by Shogakukan. The Jormungand manga was published in it from May 2006 through January 2012.

During Season 1 of the anime Sunday GX ran a character and story arc poll that ran from June through September 2012.[1]


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