I became accidental wife of great Demon King

Yu Meng agreed to marry old Duke Zixin in place of her younger sister. However her palanquin carriage stops in the middle of the deep forest and the bearers, and her maids are gone. Suddenly strange sounds of footsteps reach her ears and she hides herself in the palanquin.

The palanquin moves and she is shocked to see there's no-one outside. Her palanquin is stopped in front of the grand pavilion and she's surprised because there's no sign of humans... She walks through the pavilion and enters the luxurious mansion. Her footsteps woke up the owner, a strange force sucked her inside a dark room and a mysterious handsome man appeared before her...