Lu Bei wasn't sure what the Immortal Plant was. But the name 'Immortal Medicine' alone was enticing enough. He promptly verbally agreed with Ji Han to split the spoils, two to her third and three to his.
As for the previously agreed-upon fifty-fifty split with Han Miaojun, Lu Bei asserted that a person's word is his bond. After the fight, whoever was still standing would be his unwavering ally.
Boom!!!
Ji Han roared in anger, bearing the Nonexistence Door on her back, her hands creating an illusion of floating shadowy figures.
Lu Bei drew his sword and slashed horizontally. The blazing white sword-light passed through without hesitation with magical speed, leaving a trail of after-images.
The two fought faster and fiercer, the momentum seemingly reaching a white-hot stage where the next move would determine life or death.
At least that's what it seemed like to spectators.