MESSAGE TRANSMITTING AND RECEIVING SYSTEM, MESSAGE TRANSMITTING AND RECEIVING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM

摘要

The present invention aims to promote communication and provides a chat service in which users exchange messages while viewing a video. In the chat service, the messages are transmitted to users participating in the channel until an opening time period has passed, the messages being allowed to be sent and received during the opening time period. If any of the users pays a price, the opening time period of the channel is extended.