I’m Not Going to Be This Cannon Fodder Female Supporting Character Anymore

As cannon fodder female supporting characters in the plot, they always act brainlessly and exit early. But one day, the tool-like supporting female character awakened, and the storyline began to completely collapse. World One: [The Vicious Female Supporting Character in the 1980s] The childhood sweetheart fiancé was suddenly snatched away. Su Qin became the vicious and unreasonable female supporting character. The other party even said he only saw her as a younger sister and only understood what love was after meeting the female lead. Su Qin cheerfully agreed to break off the engagement and wished them a long and lasting relationship, locked in for life. That tr*sh could go to whoever wan...