PROBLEM TO BE SOLVED: To provide a technique for a user who has benefited from another person to give a part of the reward paid to himself / herself as a reward to a teacher / beneficiary who has given the benefit. To do. SOLUTION: When a user terminal 3 requests an employer terminal 5 to pay a reward for labor, the employer terminal gives a reward information such as a reward amount or a grant rate set by the user to a reward granting accumulation processing device 1. Contact. Reward granting The fund processing device responds to inquiries, identifies the set reward information, and sends it to the employer terminal. The employer terminal calculates the amount of remuneration given by the user as a remuneration and the amount of payment received by the user based on the amount of remuneration for labor and the received remuneration information. In addition, the employer terminal transmits digital money corresponding to the calculated payment amount to the user terminal, and also transmits the calculated reward amount information to the reward granting reserve processing device. The reward granting accumulation processing device adds the received reward amount information to the reward amount accumulation information DB 23 and registers it. [Selection diagram] Fig. 1
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