Broke off Our Engagement Because He's Found True Love? Too Late to Come Crawling Back!

Prince Edward, Mariabelle's fiancé, suddenly dissolves their engagement, telling her he has found his true love. His new fiancée, Anette, is a commoner, and Edward requests that Mariabelle be her tutor because she is "the perfect lady." After firmly rejecting his request, Mariabelle receives another marriage proposal. However, upon finding this out, Edward tries to bring Mariabelle back to him...

(Source: MangaPlaza)