Help! I'm Surrounded by Three Handsome Lords

Vivian is betrayed and exiled by her fiancé and sister. Left for dead, she activates a bizarre system, seduce men, gain power. Her targets: a beggar, a runaway, a cheapskate. Then she discovers they are, the lost prince, the war god, and the kingdom's richest man. With their powers, the crown, the army, and the gold, she's back for her throne!