Live stream viewable while sending and receiving text in group and among groups

A delivery method in a delivery system including a plurality of viewer terminals to which live video is delivered, and a streamer terminal used by a streamer that delivers the live video, the delivery method comprising:

• by the streamer terminal,
• receiving, from the viewer terminal, text posted from a viewer using the viewer terminal;
• making, when the text is received, the text appear in a screen;
• determining whether the streamer pays attention to the text, until the text exits from within the screen;
• and
• executing a predetermined attention process on text-of-attention that the streamer is determined to pay attention to,
• by each of the viewer terminals classified into any one of a plurality of groups,
• accepting text posted from a viewer using the each terminal;
• transmitting the accepted text to the streamer terminal and another viewing terminals belonging to a group into which the each terminal is classified;
• receiving text transmitted from another viewer terminal belonging to the group into which the each terminal is classified;
• and
• making the received text appear in a screen,
• by the streamer terminal,
• transmitting, in the attention process, the text-of-attention to viewer terminals that are classified in a group other than the group into which the viewer terminal, from which the text-of-attention is transmitted, is classified, and
• by each of the viewer terminals,
• making, when the text-of-attention is received, the received text-of-attention appear in the screen.

A delivery server communicably connected to a plurality of viewer terminals classified in any one of a plurality of groups, and to a streamer terminal used by a streamer that delivers live video, the live video being delivered to the viewer terminals,

• the delivery server comprising one or more processors,
• wherein at least one of the one or more processors executes:
• a process of receiving, from the viewer terminal, text posted from a viewer using the viewer terminal;
• a process of transmitting, when the text is received, the text to the streamer terminal and another viewer terminals belonging to a group into which the viewer terminal, from which the text is transmitted, is classified;
• a process of receiving, from the streamer terminal, text-of-attention that the streamer is determined to pay attention to;
• and
• a process of transmitting the text-of-attention to viewer terminals that are classified in a group other than the group into which the viewer terminal, from which the text-of-attention is transmitted, is classified.