This is the front end page of a visualization system to help people recoginize bot of MMORPG-Ghost Story. Its uses dm-algorithm - dynamic-decision-tree to classify bot player and normal player. In the main view, we will show the growth of this decision tree In the right view, we will show the statistics and details of one tree. In the bottom view, we will show the feature of user data. The paper related to this system will be shown soon.