Spoiler!
ML tricked Emilia by saying the debt was ten time the amount Emilia paid. Emilia already paid all the 'real' debt by selling everything including her hair, that's why he created the 'fake debt' so Emilia have no choice but prostituting herself to him, he used the word 'Prostitute' himself. He also forced himself on her two times and she was disgusted and have a high fever and when ML knows, he thought she was too weak. She was r*ped by him in chapter 66. Humiliate her by making her take off her clothes herself. He R*pe her again in chapter 73 very detailed rpe scene for days and call her a prostitute. He got h*rny when she offered herself to leave her family alone and the "fake debt" he created which she already paid the real debt amount and victim-blame her with no remorse and only joy and satisfaction when he look down at "her broken wretched self" which he said himself.
