I Abandoned My Engagement Because My Sister is a Tragic Heroine, but Somehow I Became Entangled with a Righteous Prince

Also known as: Higeki no Heroine Buru Imouto no Sei de Konyaku Haki Shita no desu ga, Nazeka Seigikan no Tsuyoi Ou Taishi ni Karamareru You ni Narimashita, 悲劇のヒロインぶる妹のせいで婚約破棄したのですが、何故か正義感の強い王太子に絡まれるようになりました

by Kouki Fuyutsuki

Leia’s life is turned upside down after her younger sister claims she’s a cruel villain. Leia’s fiancé breaks off their engagement, leaving her no choice but to throw herself into her saintly duties. But when confronted by the righteous Crown Prince Eric, she finds herself under his scrutiny. He’s determined to suss out her true nature, but why does it involve living in the palace with him?! (Source: Seven Seas Entertainment)