本次[偶像大師2 The world is all one!!]漫畫所啟用的主角是以天海春香，荻原雪步，我那霸響三人為組合的偶像團體。背景情況為，765組內其他成員以及龍宮小町都已經得到很好的表現，惟獨春香她們三人沒有什麼造化，某日在事務所門外偶然撞見西裝革履的男豬腳，由於男豬腳對她們的情報了如指掌，被三人誤以為是新來的producer而請進公司。雖然誤會不斷，但高木社長看中了男豬腳對三人的賞識，請他考慮成為三人的producer。男豬腳起初覺得這樣做不妥，但最後卻發現這是非他不可的職位，因為他的身份是——
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