Seeing Tangtang's face full of puzzlement, Teacher Yu explained: "Grandpa is old. If you don't go back to the water every day, you will get old very quickly."

There is a distant legend.

Legend has it that mermaids are the descendants of humans and fish.

So there are many human traits stored in genes.

Even if they are on the bottom of the sea, they can survive for hundreds of thousands of years.

Once ashore, it will be like a human being, according to the cycle of human life, age, sickness and death.

So many mermaids, even if they are greedy for the human world, will not stay for long.

When the body has symptoms of aging, go back to the ocean quickly to resist aging.

Teacher Yu has been ashore for many, many years.

Before coming to this small village to be a teacher, he also wanted to go back to the sea as he was getting older.

But whenever he wanted to leave, the substitute teacher in the village who took over his class was unable to come for various reasons.

He couldn't let go of the children in the village, so he stayed day after day.

Everyone in the village has heard his mantra: "I'm leaving soon."

But after decades of talking, he still stayed here and didn't go anywhere.

Teacher Yu gradually felt exhausted and his hair became thinner...

No way, he can only sink into the water in the dead of night to nourish his aging body.

The use of fishing nets is also compelling.

The river is no deeper than the sea.

The river was so fast that after Mr. Yu fell asleep once, he happened to run into a flood and flooded, and was rushed to the other county in confusion.

In order to catch up with the daytime class, I had to borrow money and take the car back. It was really embarrassing and tossing, and almost made the whole village known. (Small beep: the clothes I wear are borrowed!)

With this fishing net, Teacher Yu sleeps much more at ease.

Between the mermaid, as long as both parties are willing, through the magnetic field, they can know everything in each other's heart.

At this moment, Tangtang and Teacher Yu opened their hearts and exchanged information. Tangtang knew the reason why Teacher Yu sank to the bottom, and Teacher Yu also learned the truth about her leaving the ocean.

As a person who came here, Teacher Yu advised her: "Xiao Tangtang, if you come out to play, go home early. Don't be like me, covet too much, and miss your time."

The little guy nestled in the arms of Grandpa Mermaid and rubbed his head in his arms: "Grandpa is not there! Grandpa Hin is great~~~"

If it weren't for the children of humanity, grandpa would not have spent his best years.

Teacher Yu smiled and touched the little guy's head: "You are only a hundred years old, and you are still a little baby, what do you know!"

He sighed: "Grandpa knows that you like it here, and that the one named Mo Heng is good to you, but...you have to be obedient, little guy, go home early, don't you know?"

Tangtang nodded obediently.

Teacher Yu said: "Grandpa has another thing to remind you."

"Boom?"

Teacher Yu said bitterly: "Although you have met good people now, it does not mean that all you have met are good people. In human society, there are many people who want to catch us mermaids for research, and want to know the mysteries and wealth of us. You must be more careful not to be caught by them."

Tangtang understood right and wrong, and asked, "Grandpa~~What is wealth?"

Teacher Yu pointed to the pearl in her hand: "Just like your tears~~~ For humans, it is a fortune!"

Tangtang opened his palm and glanced at this small pearl.

Beads like this, in the ocean world where she lives, are like rubbish. They are thrown everywhere on the bottom of the sea. For humans, is it a treasure?

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