The first life: Gu Liu Fang 顧留芳 must leave Zi Xuan 紫萱 to become a priest. However, Zi Xuan confesses her love to him and proposes. Thinking she is still young and unsure about her feelings, he makes a deal with her that if her love for him is still strong after 3 years, he will come back to marry her. Zi Xuan is very determined and Liu Fang gives her his mask as a token of their promise.