Here to Heart tells how Zhan Nan Xian (Zhang Han) and Wen Nuan (Janine Chang) mend their relationship after they broke up ten years before. Nan Xian, a geek who has nothing, sees clear potential in the country’s high-tech development and decides to found his own high-tech company “Shallow Cosmos”, although the odds of success are very low. After many ups and downs, Nan Xian finally succeeds. Wen Nuan, who has been living in England, suddenly resigns from her job and comes to work as the director’s assistant at Shallow Cosmos, and the two former lovers meet again.