The Villainess of the Mary Sue Novel

Loner Mo Yanqiu transmigrated into the world of Mary Sue. However, he found himself in a girl’s body; a villainous supporting actress who always lost to the protagonist. She was even looked down by the protagonist’s sister, slammed as the traitor who wanted to kill her own sister to get the admiration of their father. With no ability, and just a system which was also unreliable, how would she survive? Moreover, the opening scene started from the confrontation with the protagonist.