Synopsis

Young and talented witch Xiao wants to kill herself to escape a future arranged marriage, so she offers herself as a sacrifice to a demon. The charming demon gives her a counter offer: release him from his prison, and he'll make all her dreams come true. Any sane person would not make a deal with a demon, but Xiao is not sane, and the Demon Trix is in this for the long run. As the years went by, Xiao grew to be the strongest magic user in the kingdom, and she started to see the demon as more than just a mentor.

Meanwhile, time traveller Prince Alexander is trying to save the love of his life from death and his best friend Xiao from falling into the hands of a demon. Said love of his love is also stuck in a time loop.