National destiny survival: I am weak and rely on luck to fly

Shen Nan stood in front of the laboratory table, surrounded by rows of neatly arranged bottles and jars. The colorful labels and complex chemical symbols made him feel a little uneasy.

The laboratory was filled with a faint smell of chemical reagents, and his eyes were fixed on the table, where a slender pipette and a beaker filled with an unknown liquid were placed.

Ren Linhe, Dr. Li and others stood around Shen Nan. Dr. Li held a heavy experiment record book tightly in his hand, his eyes flashing with anticipation and concentration.

He pointed to the pipette and beaker, and said to Shen Nan in a gentle tone: "Don't be nervous, relax, you just need to drop the 'Mermaid Tears' into the beaker."

This operation was very familiar to him, as he had repeated the same steps countless times.

Unfortunately, although those antibody samples can effectively treat viral infections in indigenous peoples, they have never been able to successfully induce the production of viral antibodies. It is like a race with no finish line, there is always one step missing.

Today, however, things are different.

What stood in front of Shen Nan were no longer the fragmented samples, but a complete "Mermaid's Tear".

The liquid formed after it melted quietly resides in the transparent pipette, emitting a faint pink light, as if it contains the power of life.

Dr. Li knew that this complete "Mermaid Tear" might be the key to unlocking the secret of antibodies. His intuition told him that this reagent might be able to produce antibodies.

However, as a rigorous scientist, he is well aware that any conclusion can only remain at the hypothesis stage before it is rigorously verified by experiments.

Deep down he was filled with nervousness and anticipation, eager for the experiment to succeed.

Shen Nan nodded. Although he was a little nervous, he still followed Dr. Li's instructions and carefully picked up the pipette.

The pipette contains a whole melted "Mermaid's Tear" that has been specially treated. It has a strange luster in the pipette, as if it contains the secret of the deep sea.

Shen Nan took a deep breath, steadied his trembling hands, and then gently placed the tip of the pipette close to the edge of the beaker.

There was some dark brown liquid in the beaker. Shen Nan didn't know what it was, but he just followed Dr. Li's instructions and slowly dripped the "Mermaid's Tears" into it.

As the "Mermaid's Tears" dripped, the liquid in the beaker began to undergo miraculous changes.

The originally dark brown liquid, at the moment it came into contact with the "Mermaid's Tears", quickly became clear and transparent as if it were cast by magic, as if all the impurities were purified, leaving only the purest essence.

The final step of preparation of the antibody samples was completed, and Dr. Li was preparing to instruct Shen Nan to transfer these precious antibody samples into reagent bottles for the next critical test.

Whether the antibodies can stimulate an effective immune response still needs to be verified on indigenous people. However, just as Dr. Li was about to speak, a system prompt sounded in Shen Nan's ears.

[System prompt: You have successfully developed the "virus stock solution", and your contribution has increased by 20%. ]

[System notification: You have successfully completed all the tasks in this instance. With an outstanding contribution of 72%, you have won the first place in the contribution ranking list. As a reward for this outstanding performance, you will receive 100 million interstellar passes.]

[System prompt: Double Reward Bonus Card is effective, you get 200 million Interstellar Passes. ]

Shen Nan's eyes opened wide, filled with incredible joy.

His eyes were fixed on the constantly refreshing system prompt information.

Just as he was about to turn to Ren Linhe, Dr. Li and others next to him to share the gains of this mission, a system announcement suddenly sounded in the ears of all the survivors.

[System Announcement: Xia Country survivors 'Nan Pengyouna', 'Dr. Xiaoyao Li', 'Shuangmusan', 'Qiqihar' and others have successfully developed "virus antibodies", and the main quest has been completed. ]

[Side Quest: Survival of Humanity on Earth/

During the side mission, the number of Earthlings who died was 73%.

The system will deduct 20% of the Star Pass obtained by the survivors in this instance. 】

[System prompt: The main mission of this copy has ended, and all side missions/activities have automatically ended.

The countdown to the new instance refresh is 72 hours, and the survivor safe house is unlocked. During this period, the survivors are in the safe house and no mutants/mutated creatures or natives of any level can break through. 】

As the last sound of the system faded away, Shen Nan's sight was fixed on his space backpack interface.

The balance of his Interstellar Pass was displayed there.

When the mission just ended, he just obtained 200 million interstellar passes, which, together with the more than 14 interstellar passes he had accumulated through his unremitting efforts to complete various tasks in the past few months, brought the total amount to more than 7 million interstellar passes.

But at the moment when the system announcement sounded, the number of interstellar passes in his backpack dropped sharply. Because of the side quests, his interstellar passes decreased by 20%.

Shen Nan looked at the remaining 171 million interstellar passes in his backpack and instantly felt as if the sky was falling...

Over the past few months, he had worked hard to accumulate less than 42 interstellar passes, but in the end, nearly were directly deducted.

The amount he earns is not as much as what the system deducts...