Keiko has never really fitted in. At school and university people find her odd and her family worries she'll never be normal. To appease them, Keiko takes a job at a newly opened convenience store. Here, she finds peace and purpose in the simple, daily tasks and routine interactions. She is, she comes to understand, happiest as a convienience store worker. But in Keiko's social circlel it just won't do for an unmarried woman to spend all her time stacking shelves and re-ordering green tea.