Level 1 Experience Tree

Bang!
When the last body fell to the ground, Katsumi Barlow heard a system prompt sound in his ears, and the killing team sent by the Lu family this time was completely wiped out.
"Hahaha, it's finally almost reaching ten thousand!"
As soon as the system prompt sounded, Katsumi Barlow heard a loud shout of joy.
Rolling his eyes, Katsumi Barlow looked at the ball on his shoulder speechlessly.
At this moment, Xiaoqiuqiu was staring with shining eyes at the ultra-small system attribute...