公爵令嬢の嗜み (RAW FREE)

KOUSHAKU REIJOU NO TASHINAMI - RAW

A woman gets hit by a truck and gets sent to the world of an otome game that she had played earlier that same day. However, instead of reincarnating into the main character and focus of the harem, she is fused into the soul of the games antagonist, the protagonists rival, and recalled this at the moment she is about to be sentenced to a bad ending: isolation in a nunnery.