After their parents are killed in a plane crash, Ryuuichi and his younger brother Kotarou are taken in by the chairman, who they never met before, of an elite academy. Ryuuichi becomes the school daycare's new babysitter.

After the gods dropped her in the world of her favorite fantasy romance novel, Lithera was quick to realize that happily-ever-afters were never easy to get. Given another shot at happiness, she is now determined to avoid the mistakes of her previous life, starting by meeting the sweet and caring Grand Duke she spent years exchanging letters with… Another typical female lead, with another typical Duke, promised to wed. Will this story go the typical path we all expect?

I ended up possessing the body of a stepmother in a fairytale, who was so jealous of her stepdaughter that she poisoned her and was executed by her husband. As I was getting along and showering my cute and lovely stepdaughter, Blanche, with love…
“That’s strange. Since when did your wife treat your daughter so preciously?”
…my idiotic husband kept getting in my way!
“I am also Blanche’s parent. You need to apologize for being suspicious of me.”
“And if I don’t?”
“Then I shall come find you in your bedroom, Your Grace.”
“…..”
“I’ve also prepared an especially sexy lingerie as well.”
And that’s how I dealt a fatal blow with a smirk on my face.

Katarina Claes, the eight-year-old daughter of a duke, recovered her past memories when she was hit on the head by a rock. In a feverish nightmare, in which the prince's fiancee was determined, she have realized that this exactly like an otome game from her previous life.
So, she have turned into a villain that interferes with the romance of capture targets—if the heroine got a happy end, Katarina would be exiled, but if the heroine got a bad end, Katarina would be killed.
With no happy ending waiting for her at the end of the road, Katarina somehow have to avoid destruction and reach old age peacefully!

From cotton candy scans:

Yukito is a handsome scholarship student who also excels at sports. Just starting high school, he has never had the time to think about things like love.

One day, he was saved by a girl he didn't know. Turns out, she's actually Yukito’s classmate who’s been absent since the school’s opening ceremony...

This is a story about the growth of a cutely dumb fox.

Can you give me a happy ending? Komatsu Risa is in love with her childhood friend, Sano Chihiro. Although they have a very close relationship, and are often mistaken for a couple, Chihiro is unaware of how Risa feels and accepts a confession from another girl... Heartbroken about her first love, she confides in her seemingly indifferent homeroom teacher, Natsuo.

As the middle child who is neither the heir nor the cherished younger twins, Karina has lived her whole life hidden away from others. She, who only had one hobby of painting, found out that she only had one year left to live.

So without a plan, she went to visit her fiancé who she barely knew… To annul the engagement as he always wanted.

"I won’t beat around the bush. I want to spend a year here."

"....My Lady, have you gone crazy?”

"In return, I'll agree to annul the engagement."

But, she didn’t know then. That she would receive the unconditional love that she had never received her whole life from him, and that she would come to have a desire to live her once meaningless life.

The sword of my closest friend and trusted adjutant pierced my body...

When I opened my eyes again, I had become a noble lady of the enemy kingdom. In an unfamiliar and weak stranger’s body, three year’s time was lost, in which my homeland was brought to ruin. I was unable to come to my senses because of the pain of betrayal and the confusion of my identity. However, I eventually decided to live on as 'Luciphella Aidine', a noble who wields a sword.

Shim Cheongi threw herself into the sea of Indangsu! What will happen when she wakes up in a lazy dragon's dungeon? Meet many cute monsters while living a delicious, symbiotic life!

The iron widow, the spider widow, male hunter, the witch of Neuwanstein castle, the embarrassment of noble ladies....... These were all the words used to describe the Marchioness, Suri Van Neuwanstein. Despite receiving such criticism from the world, she raised her 'children', who were unrelated to her by blood and were old enough to be called her siblings. And finally, on the day of the first son Jeremy’s wedding, she felt that all her hard work had tied all the loose ends together. But she had been terribly mistaken. After hearing the message requesting her to not attend the wedding, she got caught up in an accident and died while leaving the castle. But when she opened her eyes, she woke up on the day of her husband's funeral, seven years ago. I refuse to suffer anymore. I won’t live as I had in the past a second time!

Penelope Eckart reincarnated as the adopted daughter of Duke Eckart and the villainess of a reverse harem dating sim. The problem is, she entered the game at its hardest difficulty, and no matter what she does, death awaits her at every ending! Before the "real daughter" of Duke Eckart appears, she must choose one of the male leads and reach a happy ending in order to survive. But the two brothers always pick a fight with her over every little thing, as well as a crazy crown prince, whose routes all lead to death. There's even a magician who's enamoured with the female lead, and a loyal slave knight! But somehow, the favourability meters of the male leads increase the more she crosses the line with them!

This is Penelope’s survival story, who’s been dropped in an insane reverse harem dating sim!

In middle school, Konoha Satou dreamed of escaping into a world like that of Dark History, a romantic fantasy novel she wrote telling the story of the count's daughter Konoha Magnolia and the knight she falls in love with. Years later, her mother rediscovers that novel - only for Konoha to get hit in a traffic accident and die!

When she opens her eyes, she finds herself in the world of her own creation as the heroine's younger sister, Iana Magnolia. Somehow, she's been reborn as the character she created to be the greatest villainess of all time?!

Ghost-seeing School Boys oneshot included in volume 1 as chapter 3.5

Hyejung loved to read to escape her daily stress. But that's before she woke up inside the bizarre world of her favorite novel! Instead of the main heroine who courts three eligible men, she is now Latte Ectrie - a minor villain that everyone hates?! One way or another, it's a chance to live out her most beloved storyline, with popcorn in hand to watch all the drama! Taking charge of the narrative takes on a whole new meaning!

Kurokawa Lisa is an ordinary office worker, who has practiced lots of cooking while living alone. One day, she wakes up in another world, with a concerned little spirit hovering over her! She has apparently been transported to a magical, spirit-filled realm by the will of the goddess, and there is no known way for her to go back. She is taken in by a wealthy couple, and they and her new spirit helper treat her with nothing but kindness. There is one problem, however—the food in this magical world is gross! Lisa insists on helping the household cooking staff prepare a traditional meal from her world, and it is a big hit with her hosts. Soon Lisa knows what she should do in this new world; she should open a cafe and treat everyone to delicious food!

The Kingdom of the Sun, Fuajarl was ruthlessly invaded by the Garden of Eden. They came seeking the King's Edel Raid, rumored to be one of the Seven Glittering Jewels (or Shichiko-hoju). Sensing their intent, the King hid his daughter with his Edel Raid and fought against the invasion but was defeated in battle that resulted in the desert kingdom being blanketed in a sheet of white snow. Escaping capture, the Crown Princess Achea Fuajarl XIV reacted with Jeen, the King's Edel Raid, and along with Puffe, the Kingdom's only mechanic, fled Fuajarl in an ancient tank. They are on a journey to restore the Kingdom and exact vengeance on the Garden of Eden. This story takes place two years after Erementar Gerad.

Although she had been a promising practitioner of kendo in the past, due to an accident she was forced to lead a plain life. After Seo Yuri gets into a car accident during a trip back home, she reincarnates into the novel, "The Song of the Moon," and becomes the elder twin sister of a side character who meets a destructive ending-- Selena. Selena hopes to prevent the destruction of her family, however, she is forced to take the place of her runaway brother, Celestine, in the knights’ squadron! Will she be able to avoid the villainous Crown Prince, Ignis, and survive?!

Uesugi-kun is a boy who's as petite and cute as a girl. He has a crush on a girl he's known since childhood, but overheard her saying, "Wouldn't Uesugi be totally adorable if he was a girl?!" Uesugi-kun's not as tall as his other childhood friend, Eito, nor is he as good at studies, and now he's suffering from a broken heart. A depressed Uesugi-kun stops by a shrine while running an errand and makes a wish... A love-triangle romantic comedy featuring an overly cute, and now female, protagonist begins!

Anise suddenly gets a message on her phone one day asking whether she'd be willing to lend her their aid. As if responding to her thoughts, it chooses for her and she finds herself suddenly summoned into the world of an otome game. While Hime is dumbfounded at her situation, Hime, the girl who is summoned with her declares, "I'm the saint!" As a result, Anise is treated as useless and driven out.

If things were to continue to go on like this, then the general of the neighboring country will die, Hime, as the saint, will take over, and a tragic ending will be met. To avoid that and take her life into her own hands, Anise resolves to save the general, change the scenario, and just settle down somewhere, or that was what she planned, however...

Links:
Original Web Novel: https://ncode.syosetu.com/n0469ft/ (Japanese)

There exists an evil organisation that intends to invade planet Earth.
The man called "General" fights everyday against the Earth's Defence Force, the "Rangers"!

However, today is his day off.