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.
Miyauchi Suguri, who moved from Kumamoto to Tokyo with her dog, starts working at a pet shop due to a strange turn of events. The "dog maniac" Suguri who even grabs dog poop without hesitation creates great commotion together with her carefree colleagues and customers each with a past.
Minayo plays the legendary "Siren," a ghost who lives forever by sucking men's life force. She skillfully seduces men using her body as bait, and those who fall prey to her turn into mummified corpses.