A she-devil against infidelity, Ying is both feared and scorned by every man in town. Knowing his daughter would not fall for any ordinary man, Ying's father deliberately pits her against Liang, the wittiest man in town.

After Ying and Liang battle it out in a ferocious public debate on love, the two agree on a shocking wager: If Liang can remain faithful to Ying for a year, they would become husband and wife. The sole condition: They must live under the one roof, even if they don't share the same bed.

And so begins Ying and Liang's tumultuous relationship, as the two spend their days quarreling and secretly scheming against each other. But like all great couples, their intense rivalry eventually blossoms into love…