Miki recalls her experiences of the incident, in which she and her friend, Kei Shido, along with Tarōmaru, were at a shopping mall when the outbreak occurred. As the three spend the following weeks hiding out in the mall's upper offices, Kei eventually grows tired of being inside all of the time and sets off outside, leaving Miki and Tarōmaru by themselves. Meanwhile, Yuki proposes to the club that they go on a school outing. As the girls take Megumi's car and make their way towards the mall, Miki discovers that Tarōmaru has gone missing too.