Onyanko the Movie - One Shot Crisis! (1986)
Original title: おニャン子・ザ・ムービー 危機イッパツ！
Onyanko the Movie - One Shot Crisis! is a 1986 Japanese-language comedy movie directed by Masato Harada, with a running time of 1h 18m. It stars Eri Nitta, Aki Kihara and Sayuri Kokusho.
The story revolves around a hardcore Onyanko Club fanatic who decides he wants to kill the girls to prevent the young, cute idols from getting old and married - in a sense, to preserve their youth for eternity.