Getting a four-leaf clover means getting happiness, but it is only possible to find one four-leaf clover among a hundred thousand clovers. How slim is this happiness that is only one in a hundred thousand?
Xia Yiruo is losing the most beautiful friendship, family, and love in the world. Will she still believe in the promise made under the four-leaf clover? Will she still believe that the four-leaf clover can bring her happiness? Is the chance of happiness really that slim?