As Koguma slowly adjusts to life with her Cub, she mentions to Reiko that her luggage case seems convenient, so Reiko makes a call. After school, the pair visit a credit union, where the manager has an old Cub with a luggage case available to them.

With the colder weather taking its toll, Shii comes up with a way to provide both Koguma and Reiko with a little relief. But when the temperature dips even lower, the pair are faced with adopting measures for their Cubs that they are reluctant to accept.