https://www.cmoa.jp/title/294133/
A boy is initially overjoyed at the news of him having an older sister, due to his father remarrying to a woman who has a daughter. That is, until he finds out that his new sister is actually his school's strict PE teacher, Shina. With his father going off to live with his new wife, the boy will live alone with his new sister. In their new life together, the boy finds out that Shina at home is completely different from Shina at work: clumsy, scared of insects, and kind.
The “Kind Demon King,” Danterio, once saved this world from an angelic invasion. After his final battle, he opened his eyes to find himself—in modern-day Japan, 600 years later. He had been reincarnated into the body of Daiya Mizukami, a young man who died from a combination of bullying and an overdose of mana-enhancement drugs. Learning of the regrets harbored by Daiya—who had attended a school dedicated to fighting angels—the Demon King begins by instantly crushing the bullies who drove him to the edge! However, as he surveys the world, he realizes that magic has withered, and the angels he once defeated are on the move again— “I am the Demon King, Danterio. Allow me to teach you… the proper way to slay an angel.” The strongest Demon King runs wild in the modern era! A contemporary battle-action saga of Reincarnation x Angel Hunting!
In this other world, a person's deepest longing becomes their unique magic. Adepts - transcendent beings who wield unique magic and guard humanity from the Evil Gods, are granted every conceivable right. Konoe's past life was nothing but loneliness. So this time, he wished with everything he had - "I want to be someone's most important person." And to make that wish come true, he went through years of brutal training, finally earning the title of Adept, all to attain the right to use forbidden love potions. The one who came seeking his help was a golden-haired girl afflicted with a terminal plague.
The Federation’s highest-ranking commander, Shi Ji, was cold, beautiful, ascetic, and deadly — an untouchable flower on a high peak. Who would’ve thought that this once Beta would one day undergo secondary gender differentiation… He looked at the test report showing Omega, and calmly tossed it into the trash. He didn’t need an Alpha, he thought. But why is there this little pup, always throwing himself at him, not knowing when to quit?
Miroku-san, the slit-mouth woman, is to marry high school student Kouichi to maintain her existence as his family has been in charge of upkeeping superstitions for generations. To add, there seems to be another reason that he seems more than willing… Miroku, however, would rather use her own strength than borrow that of others. Thus, they establish a contract as follows. 1. For a trial period of a year, they are to act as though they were married. 2. If she is able to scare him within that year, the engagement will be broken. --- *This is the three-part short story's official serialization, which began on the Shonen Jump+ website on November 10, 2020.*
I’ve been reincarnated as the hated aristocrat Diabolo in a game world, but the fate closing in on me is a brutal retaliation from the heroines... To atone for and save the heroines whom Diabolo once disgraced, I will overcome harsh difficulties and obtain the strongest power!
After the sudden death of her parents, a young woman named Shiori Kanzaki finds a picture of a man that she believes to be her grandfather, and travels to Azaka Village, where he was apparently from, in hopes of meeting him. However, when she arrives she instead ascertains that the tiny village has a museum that she realizes she lived in as a young girl. There she meets Sakuma, a middle school girl who tends to get herself in trouble, and Suga, the strange manager of the museum who only communicates in written memos. Suga grudgingly allows her to stay at the museum for a while to research her family. But there is a legend in the village of "Kotori Obake", a demon woman who abducts children who go into the nearby forest. How is this story connected to Shioripast, and why does she hear voices calling her, commanding her to "Come fulfill the promise"?
The most promising candidate for the throne, Alans, was unexpectedly betrayed by his most trusted subordinate, Warek, during the election. Alans fell from his lofty position as lord and became Warek’s captive. However, Warek’s betrayal was actually due to being hypnotized by someone with ill intentions, which amplified his desires and led him to act recklessly. Once he regained clarity, he realized he had hurt the person he loved the most and had pulled him down from his pedestal. To win back his lover, he embarked on a difficult journey of redemption.
Although Omega Xindier is poor, he is very ambitious. Yet his peaceful life is turned upside down after meeting the twin princes, both Alphas.
Sshhh! Princess Syalis is trying to get a good night's sleep. Some shut-eye. Forty winks. Catch some Z's. Long ago in olden times when people and demons lived together in—well, disharmony, really—a demon king kidnaps a human princess and imprisons her in his castle. Bereft, the princess's subjects beat their chests in anguish…until a hero arises to spearhead Project Rescue Our Princess! While waiting for her knight in shining armor, what's an imprisoned princess to do…? Teddy-bear guards with bat wings are all very well, but her dungeon cell is bo-o-o-ring! So, she decides to wile away the long hours by sleeping. Now if only she could get comfortable…and didn't suffer from insomnia…
What would you do if you were reincarnated as a child emperor—kept alive as a puppet, with corrupt, greedy nobles sharpening their knives on all sides? How would you live with no overpowered abilities, no freedom to act, always one wrong step away from an assassin slipping poison into your next meal? How about this: Survive. Learn magic. Purge the empire of corruption. Sounds ambitious, you say? Well, no emperor ever made a name for himself sitting at home. Source: J-Novel Club