17-year-old Ichirou Satou is an average guy who always happens to find himself in a perverted situation with his teacher, Kana Kojima. Follow this erotic love comedy about their mishaps and how Ichirou and Kana choose to handle them.

The four Golden Times one-shot prequels are included formally as Chapters 1-4 of Nande koko ni sensei ga!? in the Volume 01 Tankobon. The series continuation begins at Chapter 5. Later chapters and volumes follow new student-teacher couples at the same school Ichirou and Kana attend.

Fujinomiya Soujirou is transported to a fantasy world with only his Daisho (pair of samurai swords) in hand. The katana can talk and swiftly informs him that it is Hotarumaru, the legendary national treasure of Japan thought lost during World War II. The wakizashi is to young to have a voice, to Souji names it Sakura. This is the story of Souji and Hotarumaru's journey through a new world as he seeks to achieve ... a sword harem?

From Lezhin:
Once a world ruled by men, women stand up and fight to become men's equal. Now, in a land that is equally divided up between man and woman, the battle of the sexes is on! Who's going to win? But more importantly...what's the name of the game?

The cow Ushiharu was brought to the middle schooler Kiyoharu's farm. To the people around him, she appears as just a normal cow, but just to him, she appears as a sexy cow-girl...!?

2nd grade junior high-school kid Shirai Sachi (14-years old) gets tutored by the beautiful and easy-going woman Chabatake Nana (21-years old). Although she slacks off when tutoring, actually not helping his studies at all, for Sachi it's all fine and dandy. Being alone together with a hot, older woman in his own bedroom, frolicking around, unintentionally revealing neathage, or just lying down on his bed, with her bare long legs or the cleavage of her ample breasts in perfect view. Who could complain? It's an adolescent boy's fantasy fulfilled!

Because he did not pass his college entrance exam, Kagami Kyosuke cannot stay close to Kojo Hikari, the love of his life. So instead he gets a part-time job near her university and buys an old camera since Hikari is passionate for photography. But as it turns out, this camera also possesses a secret which will get him involved in all sorts of embarrassing and awkward situations, especially with Botan Oshikiri, his senpai and co-worker. How will Kyosuke's life play out now?

Humans and demihumans live together in peace, and in this world, there's a normal human named Hironori Tabata.
One day, an angel named Suzuki Lina went out to find him and said she wants to have sex with him...the reason—? The Demon King will be resurrected in the future and Tabata's son will be the hero that will fight and defeat him.

Egil, an S-rank adventurer who has lived hateful of "slave", falls in love with one slave at a slave auction he was forced to bring.
She was Eleanor, the former third princess of the Kingdom of Cornelia.
Eleanor, a slave to Egil, begs Egil to "kill my childhood friend who sold me to a slave trader"! !!
Keep an eye on the estrus slaves if there is a chance! Can Egil rescue the body and mind of beautiful girl slaves and bring peace to this world ...!

From MangaHelpers:
Nogawa Izumi is a good student, and a class representative, but she has an increasingly high libido. It's gotten to the point that she'll claim to feel bad during class, so she can run to the nurse's office and masturbate. When she learns that the Earth is being invaded by aliens that look like people dressed up as animals, it turns out her high sex drive may be able to help protect the Earth. The first time Izumi is attacked by the aliens, she is rescued by Usayama, a bunny alien whose race was their previous victim. Usayama gives her a swimsuit that will allow her to fight the aliens, but which also sends her constant arousal through the roof. The scientific organization that Usayama is affiliated with think that Izumi, with her high erotic level, may be the person they've been looking for to fight the aliens. Will Izumi be able to save the Earth?

When Momoka's mother and Touri's father married, the two kids became sister and brother overnight, but as they grew up together, this relationship began to change...

From Operation Boredom:
It is currently the Taiheimeji Era. It is a reign ruled by the Tokugawa shogunate. Inside this shogunate, there is a group of warriors that support the government. They are the Manyuu Clan. In this current era, breasts mean everything. If you have breasts, you are guaranteed wealth and popularity. If you lack them, you are rarely considered "human". Members of the Manyuu Clan help raise the future big breasts. Written on a secret scroll possessed by the clan, there is said to be various techniques on how to grow big and beautiful breasts. Chifusa is to be successor of the clan. However, she takes the secret scroll and runs away with it, hoping to fight against the cruel world that the Manyuu Clan has created.

Manga supplementary of Yoko Taro's mobile game SINoALICE.

From MangaHelpers:
The story begins in 1420, right as what would be known as the Bohemian War began. A young girl named Sharka is raped and left for dead among the corpses of her whole town, but she manages to survive. She is picked up by the Bohemian forces, who put a gun in her hands and take her on board as a soldier. Will Sharka be able to fight and take her vengeance?

A spin-off of the series Murciélago featuring the character Reiko Kuchiba.

When Kirishima Ran and his classmates were transported to another world they each received an ability. However, the ability he received, [Sexual Lunatic], has caused nothing but trouble for him. His ability allows him to make any girl he comes in contact with his slave. Because of his ability, his classmates have shunned him and forced him to separate from them. With the fires of revenge burning inside his heart, Kirishima decides to overtake the class from the shadows. One by one he turns his classmates into slaves and fill his desires.

An alluring and popular honor student who goes by the name of Mone. Steadfast and diligent, she only has one foreseeable flaw; her philosophy on love is utterly trash! But both her mind and her heart might be swayed sooner than she thinks in this school love manga.

An office worker, Yuuto Aida, witnesses his wife's affair at home! When he jumps out of the house, he gets hit by a truck and is reincarnated in another world as a hero!! However, due to the misunderstanding about Goddess Reincarnation, he only had one skill, it was a skill that could captivate other people's wives!!

(MTL)

Six members of the occult circle will spend a few days at a ruined love hotel during their summer vacation. Upon arrival they meet two additional people who join them, but in the morning of the second day, a female member was found tied & naked. In addition, the exit was locked by someone and the building became a completely enclosed cage. Will this be a repeat of the 'kodoku' that happened 3 years ago?

Uchida is a high school student genius who created a device that is supposed to make people have good dreams but he always had bad dreams when he tried it on himself. One day, he caught the school doctor sleeping at the clinic and decided to try the device on her. It turned out that it works surprisingly well on her and that she wanted to buy the device from him. He then tries it on his classmates and it became quite popular with the rest of the class as people start lining up to borrow it. Meanwhile, there is growing concern that users of the device are starting to have difficulties differentiating dreams from reality.

A story of a female "phantom" thief and a hot-blooded high school senior sleuth unfold in this mystery chase-action manga.