Regressed Duke's Daughter Wants to Save Her Broken FiancéNew死に戻り公爵令嬢コレットは病んだ婚約者を救いたい; Shi ni modori Koushaku Reijou Colette wa Yanda Konyakusha wo Sukuitai

Colette, a duke’s daughter ridiculed in high society as the "Mistral family's failure," was married to her fiancé Elias. However, driven by a dark, warped obsession, Elias committed a horrific act on their wedding night, gazing her heart directly out of her chest. Instead of passing away, Colette rewinds ten years into the past! Rather than seeking pure revenge, Colette decides to uncover why Elias became so twisted and mentally broken, embarking on her second life to unravel his trauma and save her yandere fiancé before his love turns lethal once again.