AU Remus raised by older brother
I read this a really long time ago. From what I remember Remus has an older brother named either Roman or Romulus. The brother has been raising him in in secret and on the run from the Ministry, Dumbledore has sort of always known their situation. When Remus goes to Hogwarts his brother gets arrested and becomes a ghost that haunts the Shrieking Shack. Remus and Sirius develop their relationship and it's this weird thing where Remus is in denial of his feels for Sirius and strings him alone for a bit. The fic mainly takes place during their Hogwarts years.
Does this sound familiar to anyone?