The Heir's Daily Life of Taking Concubines

Strong female lead + a transmigrator takes on another transmigrator + battles a wicked stepmother + substitute marriage + transmigration

Yang Qing opened her eyes. A wedding? Hadn't she already died? A sudden wave of pain hit her. It turned out Heaven pitied her and wanted to give her another chance at life. After receiving the original owner's memories, she discovered she had transmigrated into a book. The character in the story shared her name and surname, and was nothing but cannon fodder. She had taken her own life on her wedding night. By a twist of fate, Yang Qing's soul had attached itself to her body, letting her live again in her place.