▁pride " ▁with ▁a ▁one ▁night ▁only ▁live , ▁ ▁December ▁ 2 1 , ▁ 2 0 0 2 ▁the ▁group ▁returned ▁to ▁the ▁stage ▁for ▁a ▁single ▁concert , ▁later ▁released ▁on ▁DVD , ▁titled ▁W on eder ful ▁World ▁on ▁Dec . ▁ 2 1 . ▁ ▁The ▁group ▁remained ▁quiet ▁for ▁most ▁of ▁ 2 0 0 3 . ▁Sak ur ai ▁helped ▁to ▁launch ▁Art ists ' ▁Power ▁Bank ▁( AP ▁Bank ), ▁a ▁non - pro fit ▁environmental ▁financial ▁institution , ▁in ▁June . ▁Sak am oto ▁Ry u ichi , ▁a ▁well ▁known ▁composer , ▁came ▁up ▁with ▁the ▁initial ▁idea ▁to ▁build ▁a ▁wind - power ▁plant . ▁With ▁the ▁help ▁of ▁Sak ur ai ▁and ▁music ▁producer ▁T akes hi ▁Kob ay ashi , ▁their ▁goal ▁later ▁became ▁to ▁invest ▁in ▁environment ally ▁friendly ▁projects , ▁such ▁as ▁renew able ▁energy , ▁and ▁as ▁of ▁ 2 0 0 7 , ▁participated ▁in ▁other ▁social ▁issues ▁such ▁as ▁helping ▁the ▁vict ims ▁of ▁a ▁Ch u ets u ▁off sh ore ▁earth qu ake ▁in ▁Ni ig ata ▁Pref ect ure ▁on ▁July ▁ 1 6 , ▁ 2 0 0 7 . ▁Near ▁the ▁end ▁of ▁the ▁year , ▁Mr . ▁Children ▁re - group ed ▁and ▁released ▁their ▁ 2 5 th ▁single ▁. ▁It ▁became ▁their ▁first ▁double ▁a - side ▁single ▁with ▁" T en oh ira " ▁receiving ▁no ▁commercial ▁tie - in , ▁and ▁" K ur umi