A reaction output apparatus including a memory storing image group information including a virtual space and a plurality of avatars, each avatar within the virtual space represents a person in a real space, and a processor configured to obtain sensor information that indicates movement of a first person and a second person, generate an image group based on the virtual space including a first avatar indicating movement of the first person and a second avatar to indicate movement of a second person, determine an action event based on the movement of the first person, wait a period of time to determine if the second person reacts to the movement of the first person, create group representation including the first avatar and the second avatar and the action event, output the group representation to a device associated with the first person and a device associated with the second person.
REACTION OUTPUT APPARATUS, REACTION OUTPUT SYSTEM, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM