Erika Toda joins a law firm headed by Serizawa-san, on the first case she meets Enomoto Kei of Tokyo total security who unlocks Serizawa who has accidentally been trapped in a vault. Form thereon ...

There's also a college student (Erika Toda) who is so easily persuaded by her no good boyfriend. Other commuters include a grandmother & granddaughter, a house wife, a female high school student ...