Akuyaku Reijou, Cecilia Sylvie wa Shinitakunai no de Dansou Suru Koto ni Shita.
Cross-Dressing Villainess Cecilia Sylvie·悪役令嬢、セシリア・シルビィは死にたくないので男装することにした。
A woman who is reborn as the doomed villainess in a dating sim game decides to avoid her fate by creating a new identity as a nobleman's son. She takes on the name Cecil Admina and assumes the role of a knight, eventually taking the place of her brother in the position of protecting the heroine. As she settles into her new life, the prince who was originally meant to be her husband begins to develop feelings for her new persona. If her true identity is discovered, her fate remains unchanged.
