Watch Out! She's a Genius Heiress — Episode 18

Raised in the countryside, 21-year-old Isabella Patton is sent back to her wealthy family. She soon crosses paths with the attractive, much older Oliver Bates, who pursues her relentlessly, unaware she is actually his fiancée. Meanwhile, Isabella's cousin Eliza, who was raised by the Pattons in her place, is desperately trying to turn the family against her. Fortunately for Isabella and unfortunately for Eliza, Isabella is a medical and tech genius who outsmarts her at every turn. As Isabella's brilliant talents are revealed, she wins over her five brothers and parents, becoming the pride of the Patton family while keeping Oliver at arm's length.