Shibou Kakutei Reijou ni Yoru Kareinaru Seizon Senryaku: Bikei Asashin wo Sagashida shite Sodatetara, Dekiai Ruuto ni Haitta You desu

She was reborn into the world of her favorite otome game, but the reincarnated character was a mob character who met a tragic death at the beginning of the game! To avoid death, she decided to raise Reinaldo, the strongest assassin who would eventually lead her to ruin, into a loyal knight from a young age... But when Reinaldo grew up, he showered her with his affection --!? (Source: Kodansha, translated)