The Princess Is a Poisonous Little Pet

An all-round agent of the 21st century, a master of both medicine and poisoning, he didn't expect that once he made a mistake, he traveled to ancient times and turned into a weak loser. His sister stole men, his fiancé broke off the engagement, and he even dared to bully a maid. I will not offend anyone unless they offend me. If someone offends me, I will punish them! Now that she has lived her life again, let's see how she turns her hands into clouds and rain!