Y/n has been hopelessly in love with her older brother's best friend, Peter Edwards, for as long as she can remember. The only problem? Around Peter, she forgets how to act. What starts as confidence quickly turns into awkwardness, defensiveness, and endless excuses to avoid admitting how she really feels. Her best friend, Jill Carter, knows the truth and constantly pushes her to finally make a move. But every attempt is unknowingly shut down by Y/n's fiercely protective older brother, Markus, who refuses to let Peter anywhere near his little sister. After watching Peter leave behind one broken heart after another, Markus has one rule that can never be broken: His sister is off-limits. Peter, completely unaware of Y/n's longtime crush, has always seen her as Markus's loud, annoying little sister. But as the years pass and Y/n grows into someone he barely recognizes, he begins noticing her in ways he never expected. Caught between a protective brother, a relentless best friend, and feelings neither of them saw coming, Y/n and Peter slowly discover that sometimes the biggest obstacle to falling in love... is the people trying hardest to keep you apart.