Though Ayase Yuu is the son of a renowned and talented actress, he is below average in anything he does. He is entrusted to live under the care of his mother's friend, and later discovers that he will also be rooming with the three sisters from his school who possess both beauty and talent. Though Yuu thought that an understanding would be impossible to reach between an ordinary person and those blessed with talent, the three sisters are surprisingly...?!

After being reincarnated into another world where the chastity and moral values of men and women are reversed and women rule the land, Faust was raised by his mother as a rare male knight. He's quick to become a war hero with many achievements under his belt, but because he inherited his way of thinking from his previous world, there's a certain severe pain in his groin day in and day out when faced with the likes of a scantily clad Queen who may as well be in the nude or the sexual harassment of the well endowed Duchess he calls a friend, among others...

Ichiyoshi continues to work at a chocolate factory, always keeping in mind what is "best" for him. One Christmas night, on his way home, he finds a mysterious superball that rolls out of the darkness...

A world where the Demon King was defeated by a Hero that came from another world. People carelessly forgot about their fear of the Demon King and of monsters, living in peace.

In a forgotten and run-down cave in the mountains, a new monster that should not have been born was given birth.

The monster’s name was the “Black Ooze”. It was nothing exceptional other than its black color, an ordinary slime.

However, this slime had the special characteristic of being able to take the abilities of the living things it swallowed. It preyed on an insect that had paralytic poison, as well as other animals. Following that, it attacked a human, obtaining his knowledge and Desire.

Before long, the monster established its target as the female mage that came to explore the cave.

This world still wasn’t aware.

A Monster Was Born…

The manga of the popular Light Novel series of the same name: Sisti attends a magical academy to hone her skills in the magical arts, and hopes to solve the mystery of the enigmatic Sky Castle. After the retirement of her favorite teacher, the replacement, Glen, turns out to be a tardy, lazy, seemingly incompetent bastard of an instructor. How was it that Glen was hand-picked by the best magician in the academy!?

Aramiya Seiichi is an ordinary high school... eroge otaku who's given up all hope on girls in the 3D world due to a certain incident. One day, after he bought a bunch of new materials in consequence of experiencing the frustration of a perfect eroge character turning out to be "used goods," he encounters a delinquent-like-looking girl being about to get raped by a bunch of guys. By mere chance, he rescues her.

Days later, when school starts again, it turns out to have been his classmate, Ayame, a feared delinquent girl who's got all kind of rumors about her—especially that she's "used goods." And it appears that she's set on becoming his ideal girl to make him fall for her.

The protagonist who was rarely ever at school during his middle school and high school days, is unemployed even as an adult. From morning till night, it was video games. For him who was ranked first worldwide, it was his life.

One day, his character is suddenly hacked. The data was unrecoverable and there was nothing that could be done. Feeling great despair at having lost his rank that he had bet everything to achieve in a world that controlled his life, the protagonist attempts suicide.

When he awakens, he finds himself inside the video game, no, it was a real world that resembled it. There, he notices that he has reincarnated into the the body of a sub character that he had created and bought premium benefits for long ago but had left neglected.

From Transcendence:

Ardour is the hottest pop boy band out there. All members, Sheng Ye, A Yao, and Wei, have the looks, skills, and talents that any fans would want. Lian You Yi is a normal 15 years old girl, who does not know about Ardour, even though her father is the manager of Ardour! Due to her father's inability to take care of the band, You Yi is offered to be Ardour’s new manager. You Yi accepts the offer because if she didn't, then her father would be fired! However, what she does not know about are Ardour memeber’s cocky attitudes! How will You Yi manage this band? What will You Yi do in order to keep her father’s job?!?! And will one of the boys show kindness to her, and will romance spark?

One day, Taro Yamada, who runs a detective business, slips on a banana peel and reincarnates into Tsukushi Shikizaki, the younger brother of three beautiful big breasted sisters who will all die on the same day. As he spends time surrounded by the three beautiful sisters, he finds out that the boy he is reincarnated as will be killed by one of the three sisters ...!?

Being reincarnated in a cultivation world, Han Jue realizes that he can live his life like a video game. He can reroll his cultivation potential and connate providence.
So, he spends 11 years rerolling for a good one…
[Unparalleled: Immortal beauty, top-notch charm]
[Destined Sword fanatic: Top-notch Sword Dao aptitude, top-notch Sword Dao comprehension]
[Unparalleled Movement Technique: Top-notch movement technique aptitude]
[Descendant of the Immortal Emperor: You will receive an unparalleled cultivation technique and 1,000 superior-grade spirit stones]
In pursuit of longevity, Han Jue decides to cultivate in a low-profile manner.
A thousand years later, generations of cultivators have become history.
That is when beings of the fairyland start cleansing the mortal world. Han Jue can no longer hide and has no choice but to take action.
Then he realizes, that deities and gods aren’t that powerful after all!

Eiyuu (A.U.), a high school boy, has a problem! Two childhood friends "Shio" and "Akari" who go to the same high school are too cute! If they find out that I'm the only one looking sexually at them now that they've grown up, even though I have no intention of doing so... that would be too much! On the other hand, the two childhood friends also have their own secrets...? It's so awkward! It's complicated! But childhood friends are the best! A sweet and impatient love triangle love comedy where you can't be honest!

Ao Sato is accidentally swapped with himself in a parallel world with a male/female ratio of 1:39.

He finds a kind family and lovely women at the place where he was switched.

Seeing the outside of these women, he's relieved to see that the number of men and women has changed, but not much else.

However, their inner lives are filled with conflicts and troubles.

Souichi Kirisaki, who teaches at a private middle school, has a problem. Three of his students, Senka Yutugami, Yuki Kitsuregawa, and Momoka Watarase, make fun of him. Souichi wants to be well liked, but the girls look down on him and tease him every day. Soichi is troubled, but the truth is that all three of them love Souichi, they just can't be honest with him, plus Momoka is a stalker... A sassy and cute romcom between a teacher and three middle school students!

Note: formerly a two-part Oneshot, it became serialized as of Chapter 3.

Takagi Kaito, a low status high schooler, your typical Mob character so to say, was just a normal everyday explorer who hunted slimes every day in the dungeons that appeared in Japan, earning pocket money while admiring his childhood friend, the class queen, from afar. One day, a golden slime he had never seen appears before him. After he defeats it, he obtains an extremely rare item worth hundreds of millions as a drop, a servant card that can summon mythical beings!! After he makes up his mind and summons it, a warrior maiden with unparalleled beauty appears. Rise above being just a mob explorer Kaito! A modern battle fantasy story has begun!

Aijou experienced 100 heartbreaks during Junior High. While praying in a shrine, the God of Love appears, saying that Aijou will meet 100 fated girls. If their relationship with him fails, all the girls will face an accident and die. Now it's a matter of love or death, and it's up to Aijou to decide.

I died while I was reading hate comments on my novel.

I was already in shock over my death, but some 'Grim Reaper' appeared and told me that being a bad writer was a sin. To atone and make it into heaven, I was told I needed to survive past the ending in one of my novels.

And so, I entered the novel 'The Demon King is Dead'...

"Damn it all!! Why did this have to happen to me?!"

By all misfortune, the character I possesed was the Demon Prince, a character with no combat abilities—who dies at the very start of the story!!

In his past life, although too weak to protect his home when it counted, out of grave determination Nie Li became the strongest Demon Spiritist and stood at the pinnacle of the martial world. However, he lost his life during the battle with the Sage Emperor and six deity-ranked beasts.

His soul was then brought back to when he was still 13 years old. Although he's the weakest in his class with the lowest talent, having only a red soul realm and a weak one at that, with the aid of the vast knowledge which he accumulated from his previous life, he decided to train faster than anyone could expect. He also decided to help those who died nobly in his previous life to train faster as well.

He aims to protect the city from the coming future of being devastated by demon beasts and the previous fate of ending up destroyed. He aims to protect his lover, friends, family and fellow citizens who died in the beast assault or its aftermath. And he aims to destroy the so-called Sacred family who arrogantly abandoned their duty and betrayed the city in his past life.

Cosplay manga with cute girl

When the Devil King announces his retirement, he calls forth his two sons, Yomi and Sora, to give them each a quest. Whichever of them finds a pure Yamato maiden within a year would inherit the throne of the Devil King, while the other would die. Thus begins Sora's sex-fuelled adventure to find a woman that can satisfy his father...
(Sakigake!! Otokojuku Wiki)

Anyone who has done a "certain act" in school will become unable to take off their underwear. The only one who can undo that curse is Kamite.