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I’m the Male Lead’s Girl FriendI was poor and with no one looking out for me, so I was s...
This falls under the trope of protagonist is reincarnated as the villainess of a book or game. Since the protg was reincarnated as "Louise Sweeney" before any damage was done or ill reputation has occurred, she was able to revamp the character's specs and is a studious and decent person who easily catches people's positive attention.
It's okay. It's follows the pretty standard trope, so if this is your thing, you'll probably like it.