Love by Mistake 

The acclaimed financial reporter Sylvie Jaine is cheated on? No way she'd sit back and watch that scumbag and his sweet-faced side piece ride off into the sunset! But when she sees that mistress's uncle's luxurious Rolls-Royce, she has an idea: she'll go after the CEO herself! So this bastard wants to take a shortcut to success? No problem. Watch her become their aunt-in-law instead! (Source: Webcomics)