You've got mail, the perils of Pigeon Post. 4

When Guan Shanjin willingly goes to jail in order to outmaneuver his political rival, he insists Wu Xingzi stay far away. After all, Yan Wenxin isn't just an enemy ... he's the man who broke Wu Xingzi's heart two decades ago. But Wu Xingzi refuses to do nothing while the man he loves languishes in jail, especially when his own intimate knowledge of Yan Wenxin may be the key to bringing him down for good. After all, there's only so long Wu Xingzi...