A demon sets out to create an all-girls harem of girls to impregnate and save her species from extinction.

Crossover between Ore Monogatari!! and Nisekoi.

The manga was released by Taku Kawamura @kawamurataku on Twitter.

Fushimi Inari has a hopeless crush on her classmate Tanbabashi. One day, while trying to interact with him, she accidentally humiliates him in front of the whole class. He refuses to accept her apologies, and, to make matters worse, she discovers that he probably has a crush on their incredibly cute classmate Sumizome.

She has all these things in mind when she is summoned by Uka-no-Mitama-no-kami, a pale fox goddess. In return for rescuing a little fox-spirit creature before school that day, the goddess offers to grant a single wish of Inari's. Without thinking, she blurts out that she wants to be Sumizome. As one might expect, this wish does not go nearly as well as Inari had hoped, and the kindly goddess breaks a goddess-rule to give Inari the ability to change herself back. Now, Inari can change her own shape at will, and using her new skill is very tempting as she keeps trying to win Tanbabashi's heart. But if Inari flaunts her ability, both she and the goddess might end up in trouble with Amaterasu!

Superpowers are now common among the world's population. The manifestation of powers is known as Girls' Witch Syndrome, and the origin of the sudden large scale bestowal of extraordinary abilities to children is an entity named the Mother Witch. Ayumu Takenami carries the title of Brave Star as the top ranking CARD member.

CARD is an organisation formed from the children and girls that have superpowers. After he dispatches armed kidnappers with his bare fists somewhere in the Middle East, Ayumu drops everything to go see his crush in Japan. Yuki Saimiya is an average 17-year-old high school girl with insignificant powers but wishes she could be more like the rumoured Brave Star.

As a direct continuation of Mujaki no Rakuen, we see Shouta in even more troublesome and various situations.

As a guy with no real friends, Nishina Tadatora has spent months just observing Ichinomiya Misumi who sits next to him in class. At first glance, Ichinomiya looks like a lonely girl without any special appeal, but only Nishina knows how sensually provocative she can really be. Upon realizing that Nishina is watching her, Ichinomiya begins to interact with him in her own unique way. But unbeknownst to Nishina, Ichinomiya also seems to be harboring a secret...

Kohinata Ayumi is about to go on a date with her boyfriend Shiro, but then she gets a mysterious call from one of her classmates!

Suddenly, she wakes up in someone else's body!?

Hida Kizuna possesses the HHG (Heart Hybrid Gear) ability, but it is not strong enough to make him particularly important. His older sister calls him to transfer to a strategic defense school, where many of the students (many of which are large-breasted girls) use their HHG abilities to fight invaders from another world while wearing extremely skimpy pilot outfits. Kizuna's fighting ability doesn't measure up, but his sister has another plan-- apparently having erotic experiences with Kizuna will allow the girls to replenish their energy or power-up. It looks like his new school life is going to be full of embarrassment.

Sonia Rockwell is a teenager from Radio City, who will have to face her high school daily life while she fights against the supervillains who attack the city. Join the adventures of this supersonic girl!

Hosaka Taihei is a handsome medical examiner and he just switched jobs...to be a nursery teacher!! It's the first time he's experiencing difficulty in keeping a conversation with two years old. Isn't it cute to see an evil faced new nursery teacher? The start of a complex love begins in a kindergarten!

Ryousei and Shougo are involved in a continuous and ambiguous sexual relationship. By claiming Ryousei to be his, Shougo thought that it would help to change his own feelings of helplessness, regret and loneliness. Although captivated by Shougo, Ryousei himself slowly began to realize that he was just being used. An opportunity arrives for both Shougo and Ryousei to display their painting at Shougo's elder brother's art exhibition in Tokyo. For Shougo, who has a complex about his elder brother ever since childhood, his thought of "I may be able to return to Tokyo if I succeed in it" gradually turned into pressure. Beneath the starry sky, a paint brush paints a story of youthful love.

A transfer student who's also a secret writer has a crush on a classmate lookalike who happens to be an artist, team up together.

Enma's daughter Batsu is looking for help to take down some demons. And who does she turn to...? Normal teenager Takuan! 

From Hanashi:

The start of high school life. To the girls, that also meant the start of their love lives. For brand new first year student, Takahashi Nanami (Nana for short), it was no different... She happens to end up in the same class as the incredibly popular Yano Motoharu, who rumors say that two thirds of all the girls are guaranteed to fall in love with. But will that hold true for Nana, who says that if she had to choose between like or dislike, she'd say she dislikes him!?

Note: Won the Shogakukan Manga Award for shoujo in 2005.

Senou Natsuru is a normal high school boy. One day he wakes up to find himself turned into a girl. A stuffed tiger "Harakiri Tora" comes to life and tells him to fight as a female psychic fighter "Kämpfer". Having no idea about what's going on, Natsuru is involved in the battles against other "Kämpfer".

Kämpfer is German for fighter.

Based on Valkyrie Drive: Bhikkhuni PS Vita game.

In the Kokoro series:

Vol.1 - Otokogokoro (A Man's Heart)

1 & 2. Otokogokoro & Otonagokoro
Salary man Saki almost makes it home but passes out from fever just as college student Shinomiya passes by. When Saki comes to he realizes he's in a strange apartment and Shinomiya has been taking care of him for the past two days! Not wanting to be indebted, Saki tries to repay him as thanks but Shinomiya's having nothing of it. Luckily, Saki's pretty creative when coming up with a way to express his gratitude that has them both wanting more...

3-4. Kiss Kiss Kiss

5. Nibukoi (Dull Love)

6. Hiiragi-senpai no Koi no Ohanashi

7. W Pure

Vol.2 - Koibitogokoro (Heart of Lover)

Vol.3 - Koigokoro (Heart of Love)

Vol.4 - Tokimekigokoro (Heart of Excitement)

The number of chapters comprising the main story in each book is as follows:
Otokogokoro (2 chapters),
Koibitogokoro (6 chapters + omake) entire book,
Koigokoro (2 chapters + omake), and
Tokimekigokoro (5 chapters + extras) entire book.