Manga by author Yakiimo Hokuhoku - Status completed

Kirara, a fashionable high school gal from modern Japan, suddenly wakes up in another world as Chelsea, a noble daughter known as the "useless disgrace of her family."She has no idea how to navigate noble society, let alone any of the "isekai rules" she was supposed to know. Worse, her scheming little sister Jennifer has turned everyone against her.But Chelsea isn't one to go down without a fight.Armed with stubborn determination and natural charm, she seeks out a famously strict tutor and throws herself into mastering etiquette, politics, and high society.Her transformation doesn't go unnoticedsoon, her reputation is soaring, and even Crown Prince Valentino starts paying her extra attention... maybe a little too much attention!?From "total failure" to "totally adored"!This gyaru-turned-lady is about to steal the showand possibly the prince's heart, too.

Riri Amano was just trying to survive her debt-ridden life when she suddenly wakes up in another world as a condemned villainess, locked in a dungeon and awaiting execution!Faced with certain death, Riri swears she won't go down without a fight. With her strange skillset and unshakable optimism, she sets out to change her fatestarting with a fateful encounter inside the prison walls.As she uncovers unexpected truths and wins over the hearts around her, one thing becomes clear:She may have avoided death, but now she's in danger of being completely smothered with affection.