Annoying and Cunning Sisters

What You Can't Have Is Beautiful (1x3)

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Ritsu's interest in Jun has increased since they kissed. However, he suppressed his feelings, making Jun sad. On the other hand, Ran, who lives with these two, is driven by anxiety that Jun will take Ritsu away from her, and the relationship between the three becomes increasingly chaotic. Why is Ritsu worried and wavering between Jun and Ran? Time goes back to Ritsu's childhood, and the reason for this is revealed.