第15話: 暦のミスで前日が繰り返される中、ユミコは小説の締切に苦戦する

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On the tenth of the month, Yumiko has to finish her next novel before the deadline, but she needs more time to finish it. The next day, she is still not done, and does not rip the calendar date onto the following day, which inadvertently repeats the events of the previous day, though only Makoto and Yumiko have any knowledge of this. (Source: Wikipedia)