I Just Wanted to Lie Down, but the System Forced Me to Be Weird

A modern poisonous-tongued director traveled through time and became the ancient "dead man in the coffin", bound to a forced speaking system - telling the truth will be rewarded, speaking sarcastically is more exciting, shut up? Doesn't exist. She originally wanted to live in peace, but she was forced to become the most eccentric person in the whole show, making her enemies doubt her life and making the male protagonist so angry that she couldn't sleep every day.