Episode 7

Will was satisfied to show Sol the star he bought. However, fate played a cruel joke on him and he suddenly collapsed from cancer.Cheng Jian knew nothing about all this. She was still in the dark. She didn't know that Will bought the star for her, which meant that she actually owned the star.The team is working hard to find a solution that will allow humans to survive on spacecraft for two hundred years.They plan to use advanced freezing technology to put the human body into hibernation and then revive it at some point in the future.This process is like hibernation and brings hope to people.

However, Cheng Jin discovered Wade's true purpose.He promoted the development of hibernation technology not only for the sake of the probe's passengers and pilots, but also for his own personal gain.Vader longs to live four hundred years later, so he needs hibernation technology to wake up once a year and continue his ladder plan.His desire for the future keeps him going, because with the development of technology, the future seems to be becoming more and more within reach.

Ogi started working on nanofibers out of sympathy for the people she had seen in the past.She hopes to create something for them, and Cheng Jian encourages her, believing that her current efforts are building a better future for everyone.Will wakes up in the hospital, only to find his family surrounding him, but they are not here to care about him, but to divide his property.Will takes this very lightly, because he knows he is not important in their hearts.

Vader is looking for a suitable person to carry out his plan.He wanted to find someone who was about to die, free from worries, and knowledgeable about physical science, and Will was his ideal candidate.Oggy couldn't agree with Vader's idea and decided to quit the ladder plan.She decided to destroy her life's hard work and research, unwilling to let the wealthy Danysi take it for himself and abuse it.Cheng Jian tried to persuade Will not to participate in Wade's plan, but in the end Will chose to join because he believed that he could make a final contribution to Cheng Jian's plan.

Sol told Ye Wenjie bluntly that he knew that the reason why Vera committed suicide was because she knew the secret of Ye Wenjie's summoning of Trisolarans to the earth.Ye Wenjie hinted to Saul a joke that only the two of them could understand, that is, “never joke with God”.Will refuses to sign a contract of loyalty to humans because he believes that if the Trisolarans are better than humans, then there is no need for him to be loyal to humans.The reason why he is willing to participate in the ladder plan is entirely because of his loyalty to Cheng Jian, not to humanity.

The Trisolarans contacted Tatiana, hoping that she would cooperate with their plan.Will began to receive hibernation treatment, and Thor stayed with him.Thor tried to get Will to think about the meaning of going to space, but Will remained optimistic, thinking that the Trisolarans might love him as a pet.Cheng Jian learned that Will bought the star for her and felt deeply his love for her.However, she had no time to say goodbye to Will and could only watch as his head was removed and prepared to be sent to space.Ye Wenjie returned to Hong'an Base and prepared to end her life, but Tatiana's arrival made her change her mind.She realized that the Trisolarans did not completely ignore humans, but just selectively ignored them.Tatiana firmly believes that when the Trisolarans really come, everything will become better.