| 摘要 |
PROBLEM TO BE SOLVED: To facilitate users' mutual invitation to a game. ! SOLUTION: A server computer includes the means of: receiving an invitation-key issuance request from a first information communication terminal; in response to the invitation-key issuance request, generating an invitation key; holding the generated invitation key associated to a user ID of a first user having transmitted the request; transmitting the invitation key to the first information communication terminal; when the invitation message generated by the first information communication key on the basis of the invitation key is transmitted to a second information communication terminal of a second user using a prescribed messaging tool, receiving the invitation key from the second information communication terminal; identifying the user ID associated with the held invitation key on the basis of the invitation key from the second information transmission terminal; and transmitting the identified user ID to the second information co |
