help

i have been trying to find this manga for so long, so it’s basically about this girl being reincarnated into the villains body, the theme of the manga is a martial arts and qi setting, so the girl finds out she has been consistently poisoned by her stepmom i think? by tea, and then this girl stops drinking the tea and cultivates herself or wtv, more into this story she visits a relatives house and meets this cute dude, tall, black hair, but a puppy personality and they hit it off, also somewhere in the story she gives the heroine a sword because she’s done with the ml and fl, someone please help meeee