FL is a half-dragon child who is adopted by the original story’s villain. However, after they discover she isn’t fully human (although they somehow think she’s half-lizard), she’s forced to run away from home.
The Fl possesses the OG!ML’s secret younger sister, and decides to deal with the villain duke (ML) alone by entering his mansion as a retainer. As their relationship develops and the FL continues to hide that the OG!ML is her brother, the ML ends up misunderstanding everything and thinks her brother is a scum who ditched her and abandoned both the FL and her child (who is actually her nephew).
FL reincarnated as the younger sister of the OG!2ndML and decides to become a matchmaker for her elder brother so he doesn’t die after the heartbreak of not being able to be with the OG!FL. However, when they do end up together and she can finally put an end to her relationship with the OG!ML, a new problem arises: the OG!ML is completely obsessed with her.
I’m being raised by villains