The son of a zaibatsu, Hiroyuki, attends the same university as his childhood friend and fellow zaibatsu heiress, Wakaba. Currently, they are cohabiting. Despite being a student, Hiroyuki has already taken over one of his father's companies and is promised to marry Wakaba upon graduation. The couple, envied by all, seemed destined for a happy future. One day, however, those who harbor grudges against Hiroyuki take advantage of his absence to raid his home and abduct Wakaba…
