This project is focused on designing a virtual AI-based ChatBot. In order to achieve the accuracy of simulation AI characters, we must be familiar with the characteristics and personality of the characters. First, we will analyze the characteristics and the dialogue contexts of the characters by statistical analysis. Secondly, we will build the character model by machine learning. In order to allow the system to be more realistically applied to different characters, users can set the characteristics of the characters by themselves and the system can auto accomplish an AI model based on the needs of users. *In this project, students must have some basic programming skills and statistical background.