Zi Le (Romeo Tan) suffers from Tourette syndrome. As a child, his father passed away and his mother ran away, leaving him homeless and destitute. Da Wei (Ian Fang) takes pity on Zi Le and convinces his mother, An Qi (Ling Ling Pan), to take the latter in. Despite all his misfortunes, Zi Le always has a cheerful disposition, and An Qi named him Happy Prince. Zi Le learned baking from An Qi and eventually becomes good at it, even opening his own bakery with Da Wei. He also reunites with his childhood sweetheart Yu Wen (Paige Chua). His mother, Bi Qiu (Yun Xiang), suddenly returns to reunite with him. But all is not well when he discovers that Bi Qiu harbours an ulterior motive. When the bakery gets into trouble and Bi Qiu absconds with Zi Le's money, the Happy Prince finally breaks down - Can Zi Le stand against adversity one more time and continue to pursue his dreams?

子乐从小丧父，11岁被母亲抛弃，最后被好心人收留，加上他患有妥瑞氏症。有一天，他和亲妈重逢。却车祸意外，最后他和初恋女友，张雨汶分手。