"Ok, I will tell you." Yuan decided to tell the system why he decided to make her his ally.
"Because we are and were alone," Yuan said. "We were alone in my last life so we got destroyed easily. This time we are alone too. That's why. Besides it is always better to have friends than allies."
[Do you trust her? Aren't you worried that she will betray you?] The system asked.
"Of course, I don't trust her, not yet." Yuan smiled. "Besides her sister's only daughter is going to be my disciple. This way we can improve the relationship between the two sects."
[That's a brilliant plan.]
{Although the plan is good, there are many loopholes and variables.} Yuan replied. {One of them is Yun Lan, the main factor of the plan.}
[Why?]
{Well, if she doesn't want to be my disciple, then she will die sooner or later. Then Yun Xue will also turn against us. That's why.}
[So, everything lies in her choice, right?] The system asked.