Wait, you liked me?! I was supposed to be the substitute lady who was rejected, but it seems the Ice Prince is doting on me

https://www.cmoa.jp/title/283792/

"For 10 years, I've always thought of you..."

Leila has lived in fear of her fiancé,
Prince Jill of a neighboring country, ever since he gave her an icy, cold stare when they met only once as children
, while striving to become a worthy fiancée.

But then, one day, her twin brother falls ill with a contagious disease!
To protect her brother's position and to prevent anyone from realizing he's ill, Leila decides to pretend to be him and go abroad to study!?
Jill is also at the school in the neighboring country where she's studying, so
she absolutely cannot be found out...but...!?!?!?!?!?

"I'm so glad to finally see you...let me see your face more clearly."

Her fiancé, whom she thought hated her, attacks her with sweet words and a handsome face!?!?!?
Her heart might not be able to take it with these zero-distance whispers—!!