Ochibure Queen to Gekokujou Prince

Former rich young lady, Erica, is now in the midst of a life in extreme poverty. When she participated in a celebrity party at Nariyuki, she reunited with Kotaro, a rich man who who was once her servant. Kotaro has refined himself and has become a handsome president, but are things what they seem...?

(Source: Shogakukan, translated)

Included one-shot: Itoshii Yubisaki