Our forgotten love

Meilin has always gotten sick as a child. She has always needed to take care of herself as she grew up. But eventually she is diagnosed with an illness that brings her life to an end. Yuxin is Meilin's best friend and first love. She met her in high school and through an accident she discovers Meilin's secret. Eventually nothing could stop for the harboured deep feelings she had for Meilin.

Then college hit. They stayed in the same dorm as roommates studying medicine. After 2 years throughout their course, they find out about Meilin's future. With only 6 months to live, Meilin tries to figure out her life, and what to do with her girlfriend, the one person she loves the most and didn't want to hurt.

Yuxin, heartbroken that her lover will soon pass, tries to make a promise. A promise that is broken.

8 years later, with her decision made, she tries to move on with her life. All is seemed to be well, until Meilin suddenly comes back to her life.

After Meilin passed, she became a spirt, lingering around the earth. Normally ghost would go into the afterlife, but she can't. She has been wondering around Yuxin's life, watching over her, until one day she is given a second chance, to see her again. She is given 68 days to try to succeed in going back to her place, but has to choose between her own or her lovers happiness.