"Mary Stayed Out All Night" taking over "Sungkyunkwan Scandal Museum", adapted from the Korean comic innocent, Mary his father cause failure of poverty, but it has not lost hope and courage. And love has been missed her by chance at the same time with the lead singer Jiang Wu ornaments and rich second side Jeong met, in order to seek true love, she decided to separate the two with a 100-day simulation of marriage.