This story talks about the richest woman in the world, Laurentia Aztane, a woman who worked hard for her family's name and succeeded both at work and in beauty, but her life was unhappy. This was because she discovered that her sister Erusia's illness was a complete lie, not only that, she was cooperating with her fiancé to buy all her possessions and ruin her sister.
The moment Laurentia escapes from those she blindly trusted, she returns eleven years into the past, where she was just about to get engaged. Her faith in Erusia and her fiancé had vanished; everything could go to hell. With determination, she would leave her old life behind and set out to design her new future.
Characters of "I Don't Trust My Twin Sister"
Laurentia Aztane
She is a person who from the beginning was trained to be the head of the family, so she always had that pressure. When she is stressed, she tends to yell and order everyone around; everyone ends up being afraid of her at that moment because of her intimidating facial expression. She is sensitive and caring, so she is very hurt by the betrayal of those close to her. She is also a decisive, determined person with a sense of responsibility.

Erusia Aztane
She appears to be cheerful and sensitive but less active than her sister, as she has always had very poor health since childhood. Everyone from the beginning ends up falling in love or becoming fond of her mere presence, as if she were the protagonist of a book, loved by everyone. However, she hates her grandfather and sister, having a twisted thought that because they are twins, they should share everything, even fiancés.

Barrett Berlyt
Marquis of Akpensia and fiancé of Laurentia. He is a very ambitious man with a "good" reputation. In his past life, he postponed the marriage and little by little bought all the protagonist's possessions until he ruined her while maintaining a secret relationship with her twin sister.

Ian Verdian
Archduke, He is from a prestigious family of knights who produce commanders and generals, however, he is surrounded by bad rumors, such as his sodomy (Practice of anal coitus) and libertinism. Nothing could be further from the truth; he dedicates himself to the well-being of his knights and gets into countless debts to supply the needs of his subjects since the emperor does not provide financial support. He is very detail-oriented and from the beginning fully trusts the protagonist because she is the only person who helps him.

Opinion of "I Don't Trust My Twin Sister"
I Don't Trust My Twin Sister, is an entertaining and lighthearted story despite being a bit cliché like traveling to the past and wanting to have a better life, avoid and/or take revenge on those who betrayed you (as I said, the typical) still has many things in its favor, such as the protagonist's occurrences and her charismatic relationship with the archduke, it is falling in love. Instead, his art and coloring are relatively normal, they are not bad but also not something that stands out.
Sincerely I like it but the theme of the evil twin sister, is a reading that I would take in cases of being very bored, the rest is not bad.