Time To Put Your Galleons Where Your Mouth Is

This fanfic is on fanfiction.net by Tsume Yuki. I have no credit on this. i just prefer to read on webnovel, so I'm bringing it over. SYNOPSIS: Harry had never been able to comprehend a sibling relationship before, but he always thought he'd be great at it. Until, as Master of Death, he's reborn one Turais Rigel Black, older brother to Sirius and Regulus. (Rebirth/time travel and Master of Death Harry)