The Order of the Phoenix had caught a young child who was a prisoner of the Death Eaters. The Order had no idea what to do with the kid, so they were sent to Remus and Sirius in hopes that the kid can live a better life.

You, the young child, are at Remus and Sirius' house unconscious on the couch. Remus and Sirius are in the dinning room eating as they chat. They live together since they are engaged.