As ▁in ▁total , ▁filling ▁the ▁gap ▁with ▁He i ▁and ▁Y in ▁left ▁between ▁season ▁ 1 ▁and ▁ 2 . ▁The ▁ending ▁theme ▁is ▁" D AR K ER ▁TH AN ▁B L ACK " ▁by ▁Y as ush i ▁I sh ii . ▁ ▁M anga ▁A ▁m anga , ▁illustrated ▁by ▁N oki ya , ▁was ▁serial ized ▁in ▁Month ly ▁As uka . ▁Na oshi ▁Kom i ▁released ▁the ▁series ▁to ▁two ▁tank ō bon ▁on ▁August ▁ 8 , ▁ 2 0 0 7 ▁and ▁January ▁ 2 6 , ▁ 2 0 0 8 ▁respectively . ▁The ▁series ▁has ▁been ▁lic ensed ▁for ▁a ▁North ▁American ▁release ▁by ▁Y en ▁Press . ▁A ▁second ▁m anga , ▁illustrated ▁by ▁Yu ji ▁I w ah ara , ▁the ▁original ▁character ▁designer ▁for ▁the ▁an ime , ▁finished ▁serial izing ▁in ▁Square ▁En ix ' s ▁Young ▁Gang an ▁seinen ▁magazine ▁under ▁the ▁title ▁ ▁in ▁March ▁ 2 0 1 1 . ▁This ▁is ▁a ▁separate ▁one ▁from ▁the ▁first ▁and ▁it ▁is ▁a ▁new ▁story ▁taking ▁place ▁one ▁year ▁after ▁the ▁events ▁of ▁season ▁ 1 ▁and ▁it ▁rep laces ▁the ▁events ▁of ▁both ▁the ▁O V As ▁and ▁season ▁ 2 ▁completely . ▁ ▁Music ▁ ▁The ▁original ▁sound track ▁was ▁composed ▁by ▁Y oko ▁K anno ▁in ▁ 2 0 0 7 ▁and ▁contains ▁a ▁total ▁of ▁ 2 0 ▁tracks ▁including ▁the ▁first ▁opening ▁and ▁ending ▁them es ▁performed ▁by ▁Ab ing don