A childish voice was broadcast through the broadcast system. She was Echo, the ten-year-old chief of starlight village.

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Echo treats her laptop as her best friend and is used to finding answers on the internet when she encounters problems. The only thing she doesn't know is how to express her emotions, she likes to help people, but she can't always make friends. During a campus dispute, she was forced to take her summer vacation earlier and temporarily moved to a remote fishing village to live with her unfamiliar father. Echo didn't expect the year's summer homework to be much more difficult than the previous ones. She had to help her father to serve the residents.

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Living by the sea often surprises Echo. She helps villagers solve all kinds of problems, bringing new topics and vitality to the fishing village. Questions come one after another, but Echo finds that many things in the world have no answers.