Nanny ga Koishita Daifugou

Discovering he's the father of a newborn, Liam hires a beautiful nanny. Despite going through a tough time as a single mother, Jenna appears to be well-bred, making it harder for Liam to resist her. For her part, Jenna is busy hiding her identity as a princess. She fled to the United States in order to hide her relationship with her deceased boyfriend. When she's obliged to go back to her own country, Jenna must fight her feelings for Liam, which she finds have grown much stronger than she'd realized... (Source: Renta!)