The wish engraved on Jenny's necklace is: so that the little boy can hide and seek with her. Jenny's wish is selected from the fairy tale "Seven Colored Flowers". Jenny's other six wishes are as follows:

1. Let her go home with bagels.

2. Keep mother’s petals intact.

3. Go to the North Pole immediately.

4. Go back to the yard immediately.

5. Let all the toys in the world belong to her.

6. Return all toys to the store.

The moral of "Seven Colored Flowers"

What the story tells us is that greed will make your own life chaotic, but only by helping others can you gain true joy and happiness.

In the story, the first six wishes Jenny made were all to satisfy her own selfishness. After getting them, she felt particularly troubled and did not bring much benefit to herself, so she let these wishes return to their original point. The seventh wish is to help others, and after the subsequent wish comes true, Jenny gains a good friend.