The story follows the "strongest juvenile delinquent" as he watches
over the devil king's son (and future devil king) with the destruction
of the world hanging in the balance.
Genre: action, comedy, shounen, supernatural
Author: Tamura Ryuuhei
Artist: Tamura Ryuuhei
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If you haven't read Beelzebub then click the link
http://www.onemanga.com/Beelzebub/1/