To provide an acceptance support device capable of increasing the number of participants by allowing applications for participation of persons whose group partner has not been decided.
An acceptance system is constituted by using an accepting device 1 for accepting participation wishing information including the number of participants less than a specified number of persons, storing the accepted participation wishing information in an internal storage device 14, retrieving other participation wishing information reaching the specified number of persons when combined with the number of participants of the accepted participation wishing information, and accepting consent to combination with combination partners of the retrieved participation wishing information.