Yuki's problem was not particularly difficult for Fang Zheng to solve. It could even be said that as long as they returned to the real world, he would have plenty of ways to handle it.
The Swarm's genetic adjustments could definitely cure Yuki's condition. If that did not work, Fang Zheng could use a Spirit Crystal to turn Yuki into a Spirit. He still had three unused Spirit Crystals in hand. As long as he gave Yuki one and transformed her into a Spirit like Kurumi or Yoshino, there would be no problem at all.
For now, Fang Zheng only hoped that Yuki could hold on. According to her, she had entered this game because doctors had initially used it as an experimental part of her "end-of-life care treatment."
In fact, even before the game began, Yuki had already been placed in a sterile room, living day by day without knowing how many days she had left.
That was also why she had adapted to this world better than the others. If Asuna and the others returned to the real world, they could still run, walk, play, and study freely. But even if Yuki returned to reality, she would still be unable to leave the sterile room. She could not even get out of bed and walk, and she would have to endure the relentless torment of illness.
So for Yuki, this world was instead her "heaven."
But both Fang Zheng and Yuki knew very well that no matter how cheerful, lively, and energetic Yuki seemed in this world, her body would continue to weaken by the day.
Even Yuki herself did not know how long she could live.
Perhaps one day, she would suddenly collapse without warning and then disappear.
If only he had a resurrection spell, or could