I was reborn... as a background character in a romance game?! And my fiancé is a hot duke?! Reincarnated as 'Leticia', a background character in a game, I found out that my twin sister, who has a horrible personality, pawned her fiancé, Lionel, off on me. When I first met Lionel, he was just as chubby as I'd heard... But I soon realized he was a diamond in the rough and decided to make him shine! But that's when I discovered that my newly hot fiancé is acting like he's head over heels for me...! (Source: Pocket Comics)

Lavinia is a villainous queen in a novel who is murdered by someone she trusts. When the reader wakes up as Lavinia, she knows there are five murder suspects: her seemingly loyal knight, her sly chancellor, her spy who was formerly an assassin, a brutal tribal king, and her brother, who's also her political rival. These men are all fixated on her, but when Lavinia changes her tyrannic ways, their obsession becomes less hostile and more friendly... even romantic, for some! Although her odds of survival are higher, Lavinia isn't sure she can juggle the affections of her dangerous suitors... (Source: Tappytoon)

After her mother passed, Lucia was left with a family who had barely a care in the world for her. Her only value to her father and stepmother was that the second prince had chosen to marry her. But all it took for her to lose him too was a little temptation from her younger sister Nina. Not only has Nina been revealed to be with child, but the prince now wishes to wed her instead! When Lucia is about to lose all hope, she meets the kingdom's rumored archduke... (Source: Manga Plaza)