Alun (played by Ko Chen-tung), who was killed by lightning, came to the underworld, and all his memories of his life were reset to zero. He had to make a choice: reincarnate but might become a snail; or serve as a priest, accumulate good karma and then be reincarnated as a human? Alun decided to become a new matchmaker. He partnered with the hot pink girl Pinky (played by Wang Jing) and came to the human world to perform tasks. When Alun met the dog Alu and his owner Xiao Mi, his memories of his past life came back. Xiao Mi (played by Song Yunhua) was his beloved in his previous life. Alun hopes to help Xiao Mi in the world find a new marriage, but every red line tied to Xiao Mi's hand was burned. It turns out that some things will not change in ten thousand years... At the same time, Gui Toucheng (played by Ma Zhixiang), who escaped from the underworld to the human world, launched a bloody revenge action and found the horse thief brother who betrayed and killed him five hundred years ago. When Alun was still excited that Xiao Mi couldn't tie the red line, Gui Toucheng regarded Xiao Mi as the next target to be destroyed...