Kuzu na Kareshi wa Amaku Kamitsuku

"This is the real me."

Having no defined sense of self, Suzuno spends each day simply trying her best to be the ideal woman. She somehow manages to impersonate a very capable woman at the stationery company where she works. One day, though, her handsome, prince-like coworker, Watarai, finds out what she's really like! Once they are alone together, Suzuno realizes that Watarai, himself, is not actually the princely type he seems to be... What's more, Watarai finds out that Suzuno is shouldering her parents' debt. The morning after Suzuno reveals all to the office prince, she wakes up in her own bed... To none other than a naked Watarai sleeping beside her?!

(Source: MangaUpdates)