Four friends go back to their alma mater for a wedding photo shoot. It’s a hot and humid day, Yong Chuan and Qi Qi are back at the school where they first met.

Scenes of a horrible misdeed starts to appear before everybody as one by one they are transported back into their past body, reliving their memories and the sins that they have committed. A sin that turn an angel into a devil.

But revenge is not just what the fallen angel seeks, she seeks to correct all the wrong doings that is done as she frees herself from the school that she is imprisoned in as she reach out to the outside world.

A story of betrayal and jealousy, a fable that represents all that is good thrown into the depth of hell, who waited in silent for that faithful day where she can finally get her justification and resolve.