Have you seen my mistress? [Transmigration Book]

When Ran You first came to this world, the heroine was still a good heroine who was knowledgeable, sensible, and enthusiastic. She never expected that Ran You tried her best to pull the heroine out of the blackened ending, but what she got was the original one. A black and utter heroine.Ran You: Have you seen my heroine?Such a big and good heroine, she was standing here just now!Give her back to me QAQ heroine: ... Ran You: Such a good heroine, how can she be black!The heroine: ... :) This is a story about a simple little girl who wanted to stop the heroine from becoming black, but never expected that the heroine was originally black and put herself in it.Ran You travels through time, the heroine is reborn, the end of the world text Ran You is silly and sweet, the heroine is sick and charming and blackened to demining: the heroine has an ex-boyfriend Shu