Fifteen years after being rescued from monsters that killed her family, Park Chaeyoung joins the Rescue Corps in search for the boy who saved her and will give her her favorite chocolate bar as promised.  However joining this division in the military would reveal not only the truth behind the outbreak that destroyed almost all of humanity, but also cure from an unexpected source that would also eliminate the threat of extinction

During leap year, pizza delivery boys go missing. Jennie is on the verge of losing her mind. Jisoo went missing four years ago and without a lead, the police disclosed the case as either a runaway or dead. At a secret compartment in Jisoo's room, Jennie found a journal. Weird entries about five girls and a deep secret.

That’s a real shame.