True Love Is Hard to Keep tells a moving story that begins with a secret crush and ends in regret. Wang Zhe and Zhang Mengmeng first meet in Beijing. From the moment they meet, Zhang Mengmeng's sunny, cheerful nature captures Wang Zhe's heart. From then on, he carefully hides his affection in the little things, taking on all the hard, exhausting work, gently comforting her when she faces setbacks and steadfastly staying by her side when she feels lost. As they spend their days together, Zhang Mengmeng gradually comes to understand Wang Zhe's feelings. At last, they break through the barrier between them and move from secret love to sharing their lives, their feelings quietly taking root and blossoming in his heart. He stays quietly by Zhang Mengmeng's side, sharing her joys and sorrows and helping her through her troubles, yet he never finds the courage to confess what he feels. He is content to protect her and give her a peaceful life under the name of friendship. Later, Wang Zhe, driven by his dreams, decides to start a business in Foshan. Without hesitation, he gives up everything in Beijing and sets off for an unfamiliar city. The road to entrepreneurship in Foshan is full of obstacles. Wang Zhe squeezes into a cramped rental, staying up late to make plans and facing the pressure side by side with Zhang Mengmeng as they establish Zhemeng Group together. Their lives gradually begin to improve. But happiness proves all too brief. Wang Zhe loses his way in the pursuit of fame and fortune, driving a wedge between himself and Zhang Mengmeng. By the time he comes to his senses and wins her forgiveness, the two have already promised to spend the rest of their lives together. Then, on New Year's Eve, Wang Zhe drives to pick up Zhang Mengmeng as she returns home, but gets into a car accident along the way and dies forever on the road to his true love. Their deep love, born in Beijing and tested by hardship before finally finding fulfillment, ends in the most heartbreaking way. Zhang Mengmeng is left alone to cherish the memories of their love with their three children and the unborn child, holding on to a true love that could not be kept.