The Reincarnated Siblings

FIRST VOLUME:
I was killed in an earthquake and when I wake up, I open my eyes to see that I'm in my sister's Otome game? It turns out that I'm one of the Male Flags. Unfortunately, I have more Destruction Flags than Love Flags and I turn into the last thing I touch during the night. Will I be able to stay alive in the Academy?
SECOND VOLUME:
I reincarnated as the villainess who got everyone to hate her and got exiled. Obviously I'm not going to sit around and get the bad ending!
Strangely, some characters aren't the same as the Otome Game and I no longer know what the future will hold.
How much will the plot change?!
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The art is not mine ^^