Ling Yuanyuan accidentally gets bound to a System, which tells her that the world she lives in is about to collapse.
The good news is that she can stop the world from collapsing by winning over the male lead.
The bad news is that the male lead is Duan Fei, the son of her family's sworn enemy.
To keep enjoying her carefree little life, Ling Yuanyuan has no choice but to get herself together and win Duan Fei over.
But Duan Fei is incredibly hard to win over. For three years, Ling Yuanyuan has worn a path to his door, yet he remains as cold as ever toward her.
At her wit's end, the System tearfully upgrades one of her abilities. Each night, she can practice winning people over in dream scenarios of different types, then use the experience she's accumulated to pursue Duan Fei.
From then on, Ling Yuanyuan spends every night learning how to win people over in all kinds of scenarios.
Sometimes she's dealing with a domineering prince, sometimes a ruthless martial arts alliance leader. The one not-so-great thing is that everyone she tries to win over in these simulated dreams has the exact same face as Duan Fei.
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Duan Fei has known since childhood that his family and the neighbors next door don't get along. But later, everyone in the Duan family is charmed into happiness by their neighbor's youngest daughter.
What's more, he often sees her in his dreams. They have different identities and storylines in each dream, but one thing is always the same: she's still trying to charm him.
At first, Duan Fei assumes it's just a side effect of seeing too much of Ling Yuanyuan. Later, he realizes he's gradually becoming addicted to this kind of role-play.