100,000/Hour Professional Stand-in

Ji Fanyin realized the moment she transmigrated over that she was a stand-in, a substitute for her younger twin sister, Ji Xinxin.

"Sure, I can be her stand-in. Here is my list of prices. Take a look at it first, and make sure to reserve a slot in advance. I won't accept any last-minute calls, and do take note that it'll only be a platonic relationship. Thanks for your cooperation," she said.

In a western restaurant, a rich young master looked at her with eyes filled with affection as he said, "Xinxin, I would like to ask you out for a movie tomorrow night..."
An alarm suddenly went off.
Ji Fanyin took a glance at her phone before reining in her business smile, saying, "Time's up. I need to rush for my next appointment. Make sure to foot the tab, and farewell."
The rich young master's smile froze up. "I'll reserve four hours for tomorrow's movie."

In the middle of the night, a drunk, tyrannical young master dialed her number and whined, "Big sis, when will you come over to meet me?"
"In order to ensure the quality of service, this call will be recorded. It's four in the morning right now, and my services will be ten times the usual price. Are you certain you want to proceed?" asked Ji Fanyin.
"... Hurry up and start acting!"

Ji Fanyin's phone suddenly rang in the midst of a date with a domineering CEO at Tokyo's tower. With a smile on her lips, she rejected the call and said, "Sorry, it's another customer."
"... I'll pay you ten times the price. Switch off your phone."

...

By the time Ji Xinxin finally returned back to the country, Ji Fanyin successfully retired from the scene with the massive fortune she had amassed.

Heh, bad women will never get hurt!