The daily life of a crazy female supporting character trying to redeem herself.

A system, a heartthrob, a school setting, and a cutthroat competition for power. Liang Qing, a veteran employee of the Time-Space Administration Bureau, only needs to complete one last mission to retire honorably. Little did she know that her final mission would be a hellish start. As a crazy, manipulative female supporting character in a Mary Sue school setting, tormenting the male leads, she transmigrates just as the male leads, filled with hatred for her, unite to expel her from their families. Liang Qing's mission is to seduce four male leads...