File:Harvest Moon- Sunshine Islands - Sabrina and Vaughn - Proposal

Enter Regis' mansion between 6AM and 10AM when Vaughn is on the island (Monday or Tuesday) to see the proposal event. Both previous events must have already been triggered.

Depending on your gender, Sabrina/Vaughn must be at 8-9 hearts for this to trigger (alternatively, if you are married this can be triggered regardless of friendship).