Ep. 12: Iris’s birthday party struggles with cultural differences and a last-minute crisis.

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Iris celebrates her birthday, but her friends lack knowledge of Western customs. Upon learning the details, they attempt to organize a celebration, yet the event feels distinctly Japanese rather than resembling the French parties she attended alone in France. The group must determine if they can successfully make Iris happy despite these cultural mismatches. Additionally, they face the urgent challenge of cleaning up a mess at an underground railroad station. They must resolve this issue and return in time to ensure the party proceeds as planned, balancing their efforts to create a memorable occasion with the practical demands of the unexpected situation.