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The Villainess Stans the Heroes: Playing the Antagonist to Support Her Faves!

Akuyaku Reijou wa Kyou mo Karei ni Anya Kusuru: Tsuihougo mo Oshi no Tame ni Akutou Toshite Shien Shimasu!
悪役令嬢は今日も華麗に暗躍する 追放後も推しのために悪党として支援します!
악역 영애는 오늘도 화려하게 암약한다 ─추방 후에도 최애를 위해 악당으로서 지원합니다!─
Nữ phản diện cuồng Anh hùng: Nguyện tròn vai để các Bias tỏa sáng!
Злодейка-аристократка и сегодня великолепно действует тайно: Поддержу тебя как негодяйку за твои убеждения даже после изгнания!
恶役千金今天也在暗中华丽的行动着

Adaptation

novel
I, a girl who gave up my life to be transmigrated as the villainess Eldia from a social net game, decided to act the part in order for my biases, whom I would give up everything for, to shine. Even though I went all out on my crimes and my hard work should be paying off, why won't my #1 bias leave my side...!? 

(Source: Square Enix, translated)