Cannon Fodder Villain? No! I Rely on My Strength to Become a Demon

I, Victoria, a future genius magician. He has talent and good looks, but he has a bad temper. Suddenly one day, I was told by a black cat that it was an unknown bug in the otome game. If I didn't follow the plot, the world would be destroyed. I was asked to be a stepping stone for the heroine's growth. Me: Is the heroine interesting? If it's interesting, go. Odette, the heroine of the original Otome game [Angel's Notes], is beautiful, kind-hearted, and a royal princess. Unfortunately, the road to growth must be bumpy. Fortunately, she was accompanied by the son of an earl, a paladin, the master of the magic tower, the prince of an enemy country, and the siren... She finally ascended the throne with the help of all her friends. What I, Victoria, have to do is to suppress her crazily when she is not growing up in the early stage, temper her character, and make her a powerful magician. Then I will be severely trampled under the feet of the grown-up Odette, and eventually I will disappear from everyone and live in abjection for the rest of my life. Emm... That's what the black cat who calls himself System said. In fact, this stupid cat has become my servant and is forced to serve me. And when I thought about the plot, I felt that I had made such a big contribution to Odette's growth, and I was the one who deserved her gratitude the most. Odette and other protagonists, who were standing by and applauding, heard this and nodded wildly: Victoria is absolutely sure! !