She was an average college student who reincarnated as an average noble young lady, Valerie Bolshake―no gripping backstory, beauty, or ability that a main character ought to have. It's clear who the main characters are in this fantasy World: Duke Kylus Zykellen Dwello, the most sought-after bachelor in the empire, and Serenia Horwin, a dazzling and mysterious beauty who appeared out of nowhere and was personally brought by the duke into his mansion.

But Valerie's plans to sit back and watch their fairy-tale romance blossom are thrown out the window when her father announces her engagement... to none other than Duke Dwello! Thus Valerie's grand scheme to get the duke to realize his feelings for Serenia begins... or so she thought.
(Source: Yonder)

Original Novel:
KakaoPage, Naver Series, Blice, Mr.Blue, Bomtoon, Joara

Official Translations:
English, Japanese