After completing his deal with Sara, Xia Yan had accomplished part of his plans for Rōran.
With the Queen of Roran's help, Xia Yan no longer needed to worry about using up his supplies too quickly during this period.
And with the queen watching over the Ryūmyaku, Xia Yan could spend more time on the things that needed his attention.
For instance, his promise to treat Sara's serious illness.
Xia Yan was something of a layman when it came to Medical Ninjutsu, even though his constitution allowed him to recover quickly from injuries.
He had never undergone any specific, systematic training in Medical Ninjutsu, and he rarely even read materials on the subject.
Still, Xia Yan had dared to make that promise precisely because he had some ideas, or rather, because he intended to conduct some targeted and highly valuable experiments.
His Senju Secret Technique gave him the ability to extract the essence and vitality of trees, allowing him to condense them into seeds.
Xia Yan was wondering what would happen if he extracted that vitality without condensing it into seeds, using it purely as vitality instead.
Could that serve as Medical Ninjutsu, letting him pour vitality directly into someone else's body?
Xia Yan had actually had this idea long ago, and he had quite a few other ideas as well.
For instance, could he give other people the fruits he grew but did not need himself?
And after others ate them, how could he keep those people under control so they would not pose any danger to him?
For example, since the fruits contained Xia Yan's own chakra, how could he use that chakra as a countermeasure?
These were all things he had thought about and considered. Until he had other methods, they were all he could consider.
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