In the story "Urashima Taro and the princess of the sea" the effect of urashima opening the forsaken box, is that he died

In the story "Urashima Taro"
The effect of Urashima saving the turtle is that he gets to live and Mary a princess in the kingdom of the sea

In the story "Urashima Taro"
The effect of Urashima leaving is that the princess gives him a box not to be opened.

Cause and effect in Urashima taro and the princess of the sea

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