Crown prince Cecil was so brilliant that everything in life was easy to the point of boring him, then one day, his fiancée Bertia suddenly said "Prince Cecil, I am a villainess!" Claiming that this world is the same as that of an "otome game" from her past life and that she is playing the role of the "villainess" in it, she aims to play her part well and have their engagement annulled. With that goal in mind, she sets about causing turmoil in Cecil's daily life.
An Observation Log of My Fiancée Who Calls Herself a Villainess has finished publishing and it has 33 Chapters. It is also Known as: 自称悪役令嬢な婚約者の観察記録。, Fiancée's Observation Log of the Self-proclaimed Villainess
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Top 5 Manga Like An Observation Log of My Fiancée Who Calls Herself a Villainess (Jishou Akuyaku Reijou na Konyakusha no Kansatsu Kiroku) [2026 List]
5. Kono Subarashii Sekai ni Shukufuku wo!
Game loving shut-in Kazuma Satou's life as a young schoolboy in Japan abruptly comes to an early end...or at least it was supposed to. When he opens his eyes, though, he sees a beautiful goddess that offers him a once in an after-lifetime chance to be reborn in a parallel world. The catch is that the world is violent and threatened by a growing evil! Fortunately, he can choose any one thing to bring with him. So he chooses the goddess, Aqua! And so his adventure with his gorgeous companion begins—if he could just get enough money and food to survive, keep his goddess out of trouble, and avoid grabbing the attention of the Demon King's army!
Konosuba: God's Blessing on This Wonderful World! has finished publishing and it has 127 Chapters. It is also Known as: この素晴らしい世界に祝福を！, A blessing to this wonderful world!
4. Kumo desu ga, Nani ka?
When a mysterious explosion killed an entire class full of high school students, the souls of everyone in class was transported into a fantasy world and reincarnated. While some students were reincarnated as princes or prodigies, others were not as blessed.
Our heroine, who was the lowest in the class, discovered that she was reincarnated as a spider!? Now at the bottom of the food chain, she needs to adapts to the current situation with willpower in order to live! Stuck in a dangerous labyrinth filled with monsters, it's eat or be eaten!
This is the story of a spider doing whatever she can in order to survive!
So I'm a Spider, So What? is currently publishing and has Chapters. It is also Known as: 蜘蛛ですが、なにか？, So I'm a spider, what about it?, So I'm a spider, what about it?
3. Re:Zero kara Hajimeru Isekai Seikatsu
Suddenly high school student Subaru Natsuki has been summoned to another world on the way back from the convenience store. With the biggest crisis of his life being summoned to another world and no sign of the one who summoned him, things become worse when he is attacked. But when he is saved by a mysterious silver-haired girl with a fairy cat, Subaru cooperates with the girl to return the favor. When they finally manage to get a clue, Subaru and the girl are attacked and killed by someone. Subaru then awakens in the place he was summoned and notices he gained the ability "Returns by Death." A helpless boy that only has the ability to rewind time by dying. And beyond the despair can he save the girl from the fate of death?
Re:ZERO -Starting Life in Another World- is currently publishing and has Chapters. It is also Known as: Re：ゼロから始める異世界生活, ReZero, Re: Life in a different world from zero
2. Who Made Me a Princess
The story of Athanasia, forsaken princess of the Obelian Empire, ends with her execution at the hands of her own father—or does it? Her tragic tale is the plot of the novel The Lovely Princess. But now, a modern woman who read the book has just woken up as baby Athanasia herself, filled with her own memories and knowledge of the story she’s stuck in! Determined to survive her doomed fate, infant Athanasia embarks on this new life with a plan: avoid attention and hoard valuables to fund her escape. When her plan goes awry, she suddenly needs to charm her way into the good graces of her father, the beautiful tyrant emperor, so he doesn’t kill her again!
Note: Includes 10 extra chapters.
Who Made Me a Princess has finished publishing and it has 135 Chapters. It is also Known as: Suddenly Became A Princess One Day, One Day I Became a Princess, Dites-Moi, Princesse!, One Day, I Became a Princess, Suddenly, I Became a Princess, WMMAP, ある日、お姫様になってしまった件について, Однажды я стала принцессой, อยู่ๆ ฉันก็กลายเป็นเจ้าหญิง, Plötzlich Prinzessin, Un dia me converti en una princesa, Princesa Encantadora, ¿Cómo Me Convertí En Princesa?, 某天成为公主, 某天成為公主
1. Tensei shitara Slime Datta Ken
After being killed by a passing robber, a normal 37-year-old guy finds himself reincarnated in another world as a blind slime with unique abilities. He takes up a new name and calls himself "Rimuru Tempest," which he thought of after meeting his new friend, "catastrophe-level" Storm Dragon Verudora. There, he begins his new slime-like life in another world with his increasing number of minions by his side.
That Time I Got Reincarnated as a Slime is currently publishing and has Chapters. It is also Known as: 転生したらスライムだった件, Regarding Reincarnated to Slime, Re: My Reincarnation as a Slime
