Reborn: Zuo Susu, the Poison Master and Disgraced Girl

Su Su, the chief poisoner of the Darkblood Mercenary Corps, dies unexpectedly after creating a poison that shocks the world. When she wakes again, she is on a different continent, where strength is everything. Her predecessor had fallen for a scumbag, who pushed her off a cliff, leaving Su Su to take over her body. She never expected to find a strange man in need of rescue at the bottom of the cliff. After returning to the continent, Su Su decides to live well and avenge Zuo Su Su. But as she pursues her revenge, a powerful man of unknown origins keeps following and protecting her.