She's Over the Top! 

Sungsil Yoo, iconic for being “clueless” and “over-the-top” meets and flirts back and forth with Inwoo Jeong, a man whose never had it his own way. Inwoo heads the “Yurim Rehab Center”, and Sungsil is its rock-bottom employee, but it doesn't stop the quirky two from forming a relationship in this story.