If you're looking for manga similar to Offense and Defense in Daites, you might like these titles.
The daughter of the Earl, Rosa, was known for her beauty and compassion. But in reality, she was a rotten lady who pursued her ‘moe’ by making delusions of ‘rose love’, the romance between men. Her dream was to become a nun and write down a ‘bible’, spreading the rose love throughout the continent. As the preparation of entering the priesthood, she donated to the monastery (as a bribe), strived to improve literacy (to prepare for her missionary work), and made humus for her territory (as the symbol of rottenness). One day, she met her half-brother, Bernard, a fourteen years old boy. Concluding that Bernard was the ideal ‘uke’, a talented person that only appeared once every a thousand years, Rose devoted herself to ‘Bell-tan’s Harem Plan’. However, her rotten behavior was mistaken for noble deeds. The princes, princesses, and even the foreign princes started to get involved, and she began to spread her influence all over the country…?
Yukari Tachibana, a normal high school girl who lost her life in a traffic accident. Upon waking up, she found herself reincarnated as the daughter of an Earl in another world! In spite of that, the family she was born to is quite poor. In order to improve the conditions of her second life, Yukari begins to use knowledge from her previous life...?!
A hardcore fujoshi is reincarnated as the rival character from an otome game she begrudgingly played. She's supposed to bully the heroine, but chooses instead to teach her the wonders of BL, hoping to spread it to many others throughout the world. However, an outrageous interloper makes their entrance... her very own fiancé.
The beautiful lady, Louise, has memories from her past lives. And there are 7 peoples' worth of lives (moreover the villain’s role). Louise, who has always met the bad end of getting stabbed to death, has decided that she will live this life peacefully. However, Louise has been assigned as Prince Emile's instructor! And so, she struggles with teaching the extremely shy prince who shuts himself up in his room. In her 8th reincarnated life, she will do anything for a happy ending!
With her engagement annulled, Tiararose was supposed to have been exiled from the country. “This is the otome game I played!” She realized on the day before the story’s ending. Is waiting for my conviction the only thing I can do? But, I did not do anything too cruel... Thinking so, the ending proceeds. However, during the judgement, something that was not possible in the game happened. Tiarose was proposed to by the crown prince of the neighboring country.
"The boy I saved before becomes an older and a highly talented knight!" One day, Sara was transported to another world and saved a boy named Luke who was pursued and collapsed in the forest for some reason, and decided to live together with him. However, just as Luke was beginning to recover from his wounds, Sara was abruptly sent back to her own world. Three years later, Sarah returned to the other world again and reunited with a 25-year-old Luke, the finest ice magician in the country and a knight who earned baronetcy for his achievements! He used to be 10 years younger than her, but now he's two years older and a romantic interest." I'll reward you with my entire life," he said as he began to dote on Sara.
Reborn as the third prince of a tiny and insignificant country, Hero happens to learn the forbidden-yet-powerful art of alchemy. Combined with his knowledge from modern-day Japan, Hero's abilities grow beyond what anyone in his world could fathom! With his newly-acquired powers, he’ll bring his country back from the verge of extinction...! A combination of modern-day knowledge and alchemy to turn a weak little country into a prosperous nation!
Chrono Crawford, a noble of the Cepheus Empire, has a secret. It was that he came from a different world… modern Japan. Having knowledge about modern weapons and his sense of values, he was an existence almost like a cheat, aiming to be the “Harem King”. Abandoned by his superiors, left in command of the Empire’s rejects consisting of demi-humans such as minotaurs, dwarfs, and elves, and thrust into a position as head of a poor fiefdom, Chrono will do everything he can to rebuild and strengthen his forces and revitalize the land, aided in part by his knowledge of the other world.
When the civilizations of yesteryear fade from memory and become fanciful fantasy, the only evidence of their existence...are books. Ash, a young boy living in a remote farming village, holds a secret—he possesses memories of a distant and more bountiful past life. Days of toiling in the fields have given rise to a burning desire: to bring more enjoyment to the everyday doldrum of his dreary present day! And while books may be the answer, Ash...can’t actually read! But where there is a will, there is a way. Join Ash as he battles illiteracy and sets his sights on a better life!