Based on the Chinese video game by NetEase.

Yulia is reincarnated in a world set before the start of an otome game. She started working as a maid in the castle, but she is serving the princess who appears as a villain in the game! "I won't let this cute princess become a villain!" Rumored as a tough, impregnable maid, she herself will make sure to show the princess happiness! She will use her knowledge of her previous life and the life of magic to change the future of the game is what she thought, but for some reason, a knight who showed interest in her appears! Not taking falling in love into consideration, follow this talented maid through her fantasy!

In the prolonged absence of the King and Queen of the Kingdom of Hearts, their daughter, Princess Eleonor, was compelled to hastily ascend the throne.

At that moment, memories of Eleonor’s previous life came flooding back to her, and it dawned on her that the world in which she currently resides is that of an otome game she once played…?

All the words that pass her lips turn into venomous barbs, leading her down the destruction route at full speed—!!

Threatening Notes. Locked Rooms. Impossible Murders.

We've seen detectives solve them all, but how did they come about in the first place?
How does a culprit check into a hotel without taking off his mask?
How much does it cost to set up an elaborate trick?
What's the right font to use while writing a scary message?

Presenting all these and more, in a hilarious retelling of the best Kindaichi stories, but this time, from the culprit's point of view! Can the culprit successfully pull of his crimes with the young detective watching on?

From Yuri Project:

Yuu and Haruka were inseparable during junior high but a cruel twist of fate put them on opposite sides of the class when entering senior high. Forced to spend more time with their other classmates, they decide to do something to keep their relationship special.

Web manga spinoff of Upotte!!

Sae-mi is a cute girl with a small body, but she also hides a very big secret. She's the strongest girl on Earth!! Can she keep her identity a secret and confess to her crush, Yeong-min!

After Koganei was rejected by a girl he had confessed to, he angrily ran off and was hit by a car.

When he woke up, he found that he was reincarnated in another world as Theodore Goldberg, the eldest son of a marquis. And of course, as Koganei is no stranger to isekai series, he knows that he will have some sort of cheat skill to become overpowered and live a slow life.

And so he tries to open up his status screen... only to find that this world doesn’t have video game stats. He then tries to use his OP magic skills... only to find out he is too young to even learn magic. So then he tries swordsmanship... but turns out to be weak with the blade. And so he decides to just invent modern technology to get ahead... only to find out that this world has magical devices which are identical to modern technology.

Theodore is at an impasse. He’s not strong, he’s not smart, and he’s not handsome. So what exactly is his cheat skill? For what purpose was he reincarnated in the first place if he was just reborn as an ordinary boy?

Webnovel raw: https://ncode.syosetu.com/n0391dt/

Sorbet, a butler, gets annoyed whenever Marie, a 13 year old baroness, calls him a loser. Since she's a young lady it's time for the butler to correct her behavior. The loser butler wants to teach the cheeky young lady a lesson in this romance comedy!

My classmate, Tanaka-san is super scary... or is she?

After the manufacturing company of R-18 dating sims undergoes dissolution, an obsessed 30-year-old virgin visits a deserted shrine and requests to be sent to the world of their masterpiece, Kokorone Heartful.

Although his wish is granted, the god mistakenly turns him into the heroine instead of the protagonist. Ordinarily the romancing choices are left to the protagonist. However, unless he completes the game as the heroine, he will be forced to remain in Kokorone Heartful as a woman forever.

Thirty-two-year-old Tohno Naruhiko has been scraping by as a manga creator for ten years, and when his latest series gets canceled, he finds himself at a crossroads. Tohno's always had his sights set on fantasy, but this time around, his editor's got another idea-a slice-of-life story set in a remote village not unlike the one where he was born and raised. Could a return to his roots be exactly the change of pace our reclusive manga creator needs?

The popular Fujimori Sachi never faces Kishimoto Arata, who sits next to her in class. No matter how hard Kishimoto tries to see her face, she brilliantly turns away from him. As a result, he has only ever seen her side profile. But she talks to him normally otherwise. This mysterious girl seems to have a secret...?
A cute school romantic comedy about a girl who only shows her side profile VS a boy who won't give up ♪

I actually reincarnated into a different world and became the Demon King Overlord?! And my task is to destroy humanity! Wait, that ain't right. I'm a pacifist you know? I'm not like this at all? What? I killed a thousand human army with my energy blast?! That was an accident! It was the relic's fault! It's all a misunderstanding! Hahaha! Why can't we get along nicely? Huh? So what if I'm the devil? Doesn't mean I like doing bad things! Stop annoying me or I will blast you to kingdom come! Wait! Argh! Come on! I'm not that evil! I'm not the Overlord!

Daichi is a college student who has finally fulfilled his dream of moving out and living alone. However, the one who is waiting for him at Sakuranosaki Heights is a delinquent like a landlord?! Though her expression is scary, she is a landlord that is good at looking after others. Because of this, the otaku life Daichi has always dreamed of takes a step in an unexpected direction?!

Ruri is a 16-year-old high-school girl whose heart is in a daily battle between good represented by the angel and evil characterised by the demon. The outcome of the match will determine Ruri’s personality.

Neko no Otera no Chion-san is a romantic comedy about a high school boy named Gen and an older girl, Chion, who is living at his family's temple in the countryside.

The one holding the title demon king is actually a super cute big breasted girl who has only one thing to say to the funny hero: "Damn... I'll kill ya!" No, wait that's not- Err, I mean the Romcom involving a lot of blushing, humiliation and flirting begins here!!

Amon Patricia is a Demon Lord who ruled the land but after just barely escaping the Clan of Light finds her way to the Human World. Now there, she goes about searching for work and starts by looking at a family restaurant by the name of "Humming Dining" . With her seemingly bottomless appetite and love of our hero's food will our hero be able to keep his sanity as he goes about making her an exemplary employee AND fill her stomach?!

Follow the fluffy travels of a female high schooler and a talking Shiba Inu across a post-apocalyptic world!