A novel communications system is provided, including a plurality of user terminals capable of communication using a predetermined communication software program and accessible to Internet, and an administrator server on line with Internet, wherein each of the user terminals is capable of transmitting a character message comprising character information for designating a character, action information for designating an action of the character and a text message to another user terminal through Internet via the administrator server with use of the communication software program, while the latter user terminal having received the character message is capable of displaying an image of the character performing the action and the text message on a screen by selecting a motion picture file based on the character information and the action information received using the communication software program and executing the motion picture file.