What comes out of being Niall Horan's little sister? For Nat, a whole lot of things. 🎶 Being a musician herself, she has a close bond with the band - well, with almost all of them. Except Harry. He's the one who drives her crazy, the one she can't stop fighting with... and the one who sets her heart on fire in ways no one else ever could. So what happens when sparks turn into something much more?