My god, I'm so in love with your story. It's warm and sweet, with a bit of melancholy added in. I like Sirius and Remus being the old coupple there, knowing each other inside out and just taking Harry in, making no big deal out of it. And of course Draco. I love him popping out, bringing Wolfsbane for Remus and being friends with Harry, sharing with him some insight into his relationship with Severus.