Quick Transmigration! The System's Taking Me to Earn Merit

The assassin Qianqiu makes one mistake after a lifetime of killing and is about to die, but her own elder sister gives her life to save her. Her sister's dying wish is for her to retire from the killing business and become a good person. But with her sister's cold body in her arms, how could Qianqiu stay calm? While seeking revenge, she is blown to pieces. When she wakes, a little trinket called Fuyuan is using her sister's dying wish as an excuse to run amok! Thus begins a journey of redemption across one world after another. The protagonist transmigrates as both women and men. If that's not for you, please stop here. If you have feedback, message me privately. Also, the protagonist has plenty of flaws: she's weak but loves to flirt, and she's both a player and wildly self-assured. Feel free to criticize her, or Fuyuan. Just don't criticize me, and please be civil while reading. May good people enjoy long, happy lives.