Marrying School Girl

The story begins with the tale of a classic Korean story of romance about a princess named Pyun Gang, whose husband, On Dal, dies. Then we flash forward to a mother who has brought her haunted daughter (also named Pyun Gang) to a psychic, who informs her that her daughter is haunted by the ghost of the princess. He then goes on to say that the girl must marry her On Dal by her 16th birthday and produce a child within a year otherwise she will die. The family treats it skeptically until years later, Pyun Gang has several near-death experiences and is immediately spooked, convinced she is going to die. As luck would have it, soon thereafter, a new transfer student joins Pyun Gang's class. His name is On Dal, and he's intelligent, handsome and rich which really doesn't make the prospect of high school marriage such a tough deal for Pyun Gang, what with her impending death and all.
(Source: AsianWiki)