Chen Miran aspired to become a figurine designer and applied to the design department at university, hoping for a fresh start. However, she ended up being transferred to a different major. What's even more unfortunate is that she will be classmates for four years with her first love, the guy who callously dumped her in the past. Zhong Weiqiong, determined to get back his ex, resorts to all sorts of tactics to "torment and seek revenge," all in an attempt to rekindle their former love. However, Chen Miran can't bring herself to admit that everything began because Zhong Weiqiong mistook her identity back then. So, she has to come up with various tricks to escape his advances. Little did they know that, despite all the twists and turns, their hearts still beat for each other. They fall in love again and become a sweet couple once more until the "real contender" suddenly appears, turning their world upside down...