This Guy Is the Biggest Mistake in My Life(2020)

This Guy Is the Biggest Mistake in My Life is a Japanese romantic comedy series following Sato Yui, a contract worker at Amagi Pharmaceutical Company grieving the loss of her pet. Drunk and desperate at a bar, she shouts about developing medicine to resurrect the dead. A man dismisses her harshly, and in her anger, Yui trips him before leaving. The next morning, she discovers her antagonist is Amagi Kyoichi, the company's CEO. Expecting dismissal, Yui is shocked when he instead demands she treat him as her slave. What begins as a humiliating power reversal spirals into an unexpected connection as these two navigate workplace chaos, personal wounds, and the messy complications of falling for your biggest mistake.