Consider this a follow-up to JTM's epic article on the 80s teen heroine show, "Sukeban Deka"（スケバン刑事）. My fellow collaborator from Hawaii mentioned this song in his article and I just wanted to talk a bit more about it.
First thing is that I want to congratulate Mitsuo Hagita（萩田光雄）who arranged "Rakuen no Door" (Door to Paradise) for aidoru Yoko Minamino（南野陽子）who not only sang the song but also starred in the movie version of "Sukeban Deka" as Yoko Godai, the titular juvenile delinquent-turned-crimefighter. Hagita managed to get the song to melodically describe the psyche of just about everyone who has gone through the Sukeban Deka programme: the low thrumming synths showing the uncertain rough-and-tough-and-unfair life while the sweeping strings which gradually come in represent the regular feminine life that the girls most likely yearn for.
Megumi Ogura（小倉めぐみ）was responsible for the lyrics which also related not only the girls' sad from-the-outside-looking-in situation but also the hope that slowly but surely the day is coming when they will be passing through that door to paradise. As for Nanno, she sings "Rakuen no Door" in a way that reminded me of another sailor-suit-sporting girl with a weapon, Hiroko Yakushimaru（薬師丸ひろ子）.
Released in January 1987, this was the aidoru's 6th single. It became the first of her 8 straight No. 1s in the late 80s and the song eventually became the 14th-ranked entry of the year.