, ▁Sh iga ▁and ▁Kob ashi ▁challeng ed ▁Jun ▁A ki y ama ▁and ▁A kit oshi ▁S ait o ▁for ▁the ▁G HC ▁Tag ▁Team ▁Championship ▁but ▁came ▁up ▁short . ▁In ▁January ▁ 2 0 0 3 , ▁Sh iga ▁would ▁suffer ▁a ▁serious ▁neck ▁injury ▁that ▁would ▁keep ▁him ▁out ▁for ▁over ▁two ▁and ▁a ▁half ▁years . ▁ ▁After ▁two ▁and ▁a ▁half ▁years , ▁Sh iga ▁returned ▁to ▁the ▁ring ▁at ▁NO A H ' s ▁September ▁ 1 8 , ▁ 2 0 0 5 ▁N ipp on ▁Bud ok an ▁show ▁where ▁he ▁lost ▁to ▁Tam on ▁H onda . ▁One ▁year ▁after ▁returning ▁from ▁injury , ▁Sh iga ▁defeated ▁Sc or pio ▁on ▁September ▁ 3 , ▁ 2 0 0 6 ▁to ▁win ▁the ▁G HC ▁Open weight ▁Hard core ▁Championship , ▁his ▁first ▁championship . ▁In ▁February ▁ 2 0 0 7 , ▁Sh iga ▁formed ▁a ▁tag ▁team ▁with ▁K ish in ▁K aw ab ata ▁called ▁the ▁Pen ▁P als . ▁On ▁February ▁ 1 7 , ▁The ▁Pen ▁P als ▁won ▁a ▁tournament ▁to ▁become ▁the ▁first ▁G HC ▁Hard core ▁Open weight ▁Tag ▁Team ▁Champions . ▁On ▁July ▁ 1 5 , ▁ 2 0 0 7 , ▁the ▁team ▁challeng ed ▁Jun ▁A ki y ama ▁and ▁T akes hi ▁R ik io ▁for ▁the ▁G HC ▁Tag ▁Team ▁Championship ▁but ▁lost . ▁In ▁November ▁when ▁the ▁Tag ▁Team ▁Championship ▁again ▁became ▁a ▁singles ▁championship ▁which ▁saw ▁Sh