They never expected to see each other outside school - until their parents decided to marry each other. They were just ordinary schoolmates. But when their parents suddenly announced their marriage, everything changed. Overnight, they went from casual schoolmates to step-siblings under one roof. From awkward introductions to unexpected understanding, Schoolmates to Step-Siblings is a story of choas, learning how to be siblings when they were never really friends. How they will react when Adhyay's father and Saransh's mother will decide to marry each other? At such young age how they will cope up their unwanted new relationship? Peep in to know the answers.