The World Fell Apart from the Start, and I Survive with the System

[A scheming legitimate daughter who plays the pig to eat the tiger × a sweet-faced, vicious wolfhound of a Grand Commander]

[Household intrigue + System + political scheming + sweet romance]

A modern white-collar worker wakes up as a foolish legitimate daughter being poisoned by her stepmother. Bound to a household-intrigue achievement System, she completes one bizarre task after another, playing the fool while exposing the scheming hypocrites around her. Along the way, she turns the tables on the Grand Commander of the Imperial Guards, a modest gentleman by day and a fearsome dragon crossing the river by night.