on ", ▁" O war in aki ▁tab i ", ▁and ▁" H ok ib oshi ". ▁One ▁month ▁later ▁Mr . Children ▁were ▁special ▁guests ▁at ▁The ▁M uj int ou ▁f es . ▁ 2 0 0 6 ▁and ▁performed ▁" M ira i ", ▁" In noc ent ▁world ", ▁" H ok or obi ", ▁" Sign ", ▁" O war in aki ▁tab i ", ▁" World s ▁end ", ▁and ▁" H ou k ib oshi ". ▁Short ly ▁after ▁Mr . Children ▁announced ▁a ▁joint ▁tour ▁with ▁fellow ▁Japanese ▁rock ers ▁the ▁pill ows , ▁known ▁as ▁' Mr . Children ▁& ▁the ▁pill ows ▁new ▁big ▁b ang ▁tour ▁~ This ▁is ▁Hy brid ▁In noc ent ~ '. ▁The ▁tour ▁was ▁held ▁from ▁September ▁ 2 6 , ▁ 2 0 0 6 ▁through ▁October ▁ 1 1 , ▁ 2 0 0 6 . ▁On ▁November ▁ 1 5 , ▁ 2 0 0 6 , ▁the ▁group ▁released ▁their ▁ 2 9 th ▁single ▁, ▁which ▁was ▁used ▁as ▁the ▁theme ▁song ▁, ▁by ▁N TV , ▁a ▁controvers ial ▁television ▁drama ▁about ▁under age ▁pre gn ancy . ▁Kaz utos hi ▁Sak ur ai ▁had ▁begun ▁writing ▁the ▁song ▁in ▁February ▁ 2 0 0 6 ▁and ▁finished ▁writing ▁in ▁March ▁ 2 0 0 6 . ▁and ▁shot ▁the ▁prom ot ional ▁video ▁in ▁September ▁ 2 0 0 6 . ▁One ▁of ▁the ▁b - s ides ▁of ▁single