Watashi wo Korosu Gitei wo Rourakushiyou to Omoimasu

After a bitter struggle for the throne ends in her execution at the hands of her stepbrother Filio, Lea awakens to an impossible second chance. She has been transported back in time, returning to her fifteen-year-old body with full memories of her tragic fate. Determined to rewrite history and avoid another deadly confrontation, she devises a careful plan: instead of fighting Filio for power, she will charm him, earning his trust and securing him as a loyal ally before their rivalry can ever take root. However, her calculated strategy quickly spirals out of control. What begins as a pragmatic effort to survive transforms into a consuming obsession, as Lea finds herself desperate to keep her stepbrother entirely to herself. She views him as nothing more than her endearing younger brother, albeit one burdened by an unhealthy sister complex, but that assumption proves dangerously naive. Beneath his familiar exterior, Filio harbors hidden depths and secrets that Lea never uncovered in her first life—secrets that threaten to complicate her plans far beyond anything she could have anticipated.