Ling Zi Ming and Cheng Yi are two childhood friends. Zi Ming has lived with his second eldest maternal aunt since childhood, whilst Cheng Yi was brought up by his grandmother. Because of their family backgrounds, the two boys have always supported one another. But when they reached puberty, their mental states underwent dramatic changes. Being still young, the boys have no idea what love is. Although they try to grow closer, they unexpectedly drift further and further apart.