On College Entrance Exam day, Serena Aston forced her boyfriend Leo Warner onto the bus, as he waited for his childhood sweetheart, Dahlia Shaw. Later, Dahlia and Leo pushed Serena off a rooftop, claiming she committed suicide. Serena was reborn to the moment before the exam when Leo stopped the bus for Dahlia. This time, Serena decides not to intervene, letting them suffer the consequences.
