While playing an obscure game, Huo Kou is unexpectedly pulled into it by the System.
System: "You've been selected by the System to become a member of the quick transmigration program. Your identity is the legitimate daughter of the Huo family, and you need to win over the game's biggest villain."
And so Huo Kou begins her conquest.
*
Before she has completely finished the mission, Huo Kou regrets her decision.
Every time the ruthless, crafty villain He Zhiyi sets aside his status and calls her "Big Sister" in her ear, Huo Kou realizes she can't bear to let him go.
Theme: Transmigrating through time and space to meet you