Sister's contract: a trap or honey?

My name is Lin Zhou. I'm twenty years old. Fresh out of school, I got beaten down by society and ended up in a shabby partitioned room. My landlady, Yan Luxi, is twenty-seven. She drives a luxury car, wears high heels, and radiates a dangerous maturity from head to toe. At my most desperate, she handed me a "special contract" — free rent at the cost of monthly companionship. I thought it was a lifeline, never expecting it to be a carefully woven net, trapping me firmly in her territory.