[At first, they're enemies: one genuinely wants to dissect and study the other, while the other genuinely wants to eat humans to protect them.]
In 2222, a rare genetic disease swept across the world. For those unlucky enough to contract it, an early death was the only possible outcome.
Until
The abandoned young master of the Lu family appeared before the world, bearing the truth about genetic recombination. Only then did people understand that genetic collapse syndrome wasn't the beginning of humanity's extinction, but the bugle call of human evolution.
People used to say that the useless young master of the Lu family did nothing but sponge off his family and waste money, lived extravagantly, and offended everyone. They said he was malicious and repeatedly framed his siblings, until karma caught up with him and he contracted a genetic disease.
This good-for-nothing couldn't compare to the second young master. The Lu family had every right to abandon him and cut ties with him.
Now, those desperate to avoid dying from the disease and those hoping to evolve successfully all changed their tune, joining the chorus condemning the Lu family, just to beg Lu Hui for genetic medicine.
Even members of the Lu family personally tied up the second young master to beg him to give them a chance to live.
Lu Hui said only one thing in response, but it left the Lu family so terrified that they never dared come to him again.
"The secret of the genetic mutagen is down in the deep sea."
Only the Lu family knows that they once pushed Lu Hui into the sea.
Only the present-day 'Lu Hui' knows that the abandoned boy never came back.
On that stormy night, Lu Hui sank to the calm sea floor. A creature like a sea demon surfaced on the raging waves, grabbed a piece of wreckage, and came to the human world in a state of bewilderment.
He wanted to try everything, to taste everything...
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[Bonus Scene]
Professor Xie caught one unknown species, 'Lu Hui,' and listed it in Link One for 200 yuan.
Professor Xie collected one evolved amphibious manta ray and listed it in Link Two for 50 yuan.
Then a little mishap occurred
Link One ate Link Two!
So Professor Xie hurriedly changed the price of Link One: Unknown species 'Lu Hui,' 250 yuan.
Link Two is out of stock...
Later
Professor Xie took Link One off the market and began buying Link Two in unlimited quantities, indefinitely!
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Theme: Embrace new things, adapt to the wider world, study hard, and keep improving.