May the Passing Years Leave No Dust

When Xia Mo starts high school, she runs into the school heartthrob she'd met a few times in middle school. After a few rounds of verbal sparring, they start calling each other close friends of the opposite sex. In middle school, he was Su Cheng, a rich playboy. In high school, he becomes Lin Ranchen, Xia Mo's constant companion and confidant. They care deeply for each other, yet in the end, a mere title keeps them worlds apart.