How could it end up in Wei Jin's hands_1?

It was Prince Aisi's envoy.

At the time when she had inquired about Prince Aisi's bow and arrow, he hadn't given a clear response on the spot, instead saying he would think about it. If he decided it was alright to give, he would send someone to deliver a message to Su Luo.

Su Luo understood the meaning behind his words.

He knew how to construct this bow and arrow but hadn't decided whether he could give it to Su Luo.

This matter was of utmost importance, Su Luo didn't really expect it to work out. So when he said he would think about it, she didn't feel disappointed and thanked him as usual.

Though the hope was slim, since Prince Aisi hadn't outright declined, Su Luo held onto a glimmer of hope and thus was restless when she woke up in the morning.