The duplicitous swordsman Xu Luo has a soft spot for the prince Shi Yu
Three years ago, Xu Luo, the best swordsman in the world, was plotted by Shi Jian Ming and fell into the Blood-devouring Valley. When he opened his eyes again, he was lying on the ice bed and was rescued by Shi Yu. Xu Luo thought he was lucky to be alive, but he didn't expect that he would have to rely on Shi Yu's blood to survive. The price was pain sharing - half of the pain suffered by Shi Yu would be shared with him.
Shi Yu claimed that he was a sick man and that if he did not have the elixir of recovery, he would die within two years. However, because Shi Jianming was not his biological father, he hid the elixir but refused to save him. Xu Luo originally hated Shi Jianming deeply: three years ago, Shi Jianming triggered the Puppet Rebellion in Puppet State, blaming Xu Luo's father Xu Pei, which led to the Five-Nation Allied Forces destroying Puppet State.
After Xu Luo stabbed Shi Jian Ming, he handed the Spiritual Recovery Pill to Shi Yu, but the other party forcibly injected the medicine into his body. It turns out that "without medicine, you will die" was Shi Yu's lie. From rescuing Xu Luo to setting up a scheme to kill his father, everything Shi Yu did was just to borrow the elixir so that Xu Luo could regain his true vitality.
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Intention: Whatever