The story will combine the legend of a demon king with a hero who crosses over time and other things. The comedy will involve traveling between a Japanese living room and another world.

There was a time when there were ninja serving the powerful, hired for intelligence missions, destruction, or assassination. While the times have changed, the need for ninja has not vanished. In a particular school, there are girls who are secretly in training to become ninja. Ninjas-in-training, Asuka, Katsuragi, Hibari, Ikaruga, and Yagiyuu each have a secret technique scroll that they protect at all times. This features their tumultuous school life as they pursue the path of the ninja!

Hagiwara Sakura and Miyazawa Elena are the leading members of a popular idol group "Sweet". One day, Elena is injured by the attack of a female pro-wrestler Kazama Rio during the recording of a TV program. Sakura gets mad at Rio and gives her a dropkick. To avenge Elena, Sakura enters the female pro-wrestling matches.

“Hey Kuroya-kun, do you like me?”
“How did you know!?”

Unrequited love. What a shame for Kuroya, a gloomy student in high school.
The other party is Kasumi Shiramori, a senior in the literature club and a transcendentally beautiful girl. While spending time alone in the club, I should have hidden this feeling for a long time…!
Senior told Kuroya in desperation.

“Then -? Want to try dating me first?”

There’s no way a relationship exists in the minds of these two!? No, wait, it should be like this-
Both the feelings and the super-sweet romantic comedy of youth are full of faintness in the misery of a longing senior who is teased despite being in a relationship!

Ooyama Takeru, a young normal yet perverted minded guy, got accepted and now goes to a school that, unknown to him, was where combat and magic is used. On the first day, he meets again after three years: Amaya Haruko, his childhood friend, Kushiya Inaho, a girl who says she's his fiance, and Himegami Kodama, a blonde who wants to kill him. Finding out that there are many girls there that just don't like him, he is told that everyone there uses a special magic ability while using an item or weapon called a Maken. Later, he finds that no Maken is acceptable for him and doesn't know what to do, since in this school the students get into duels that showcase their magic and combat power, to which he seemingly has none.

A widely popular TV animation series "Magical Girl ☆ Charming Luluna". Niimi Reiji, is a huge fan mahou shoujo otaku.
One day he died while saving his friend's daughter suddenly reincarnated in a different world. But, as a magical wand rather than a human being!
He has ability to Make(forced) a beautiful girl that you met into a "Magical Girl" and turn it into a magical (physics) power in a different world!
Beginning in a different world adventure of Magical Girl Saga to fight demon king forces, start!

Two girls who want to become idols are entering into their long dreamed school—Kiraboshi-juku—Kiraboshi Nadeshiko and her close friend Mangetsu Sakurako. These two are so close that despite both being girls, they're often compared to a married couple by people around them.

And so begins their life in the dormitory as roommates. However, on their first night, an unusual, illicit impulse strikes Nadeshiko...

From MangaHelpers:

After being kicked out of the main dorms for bringing in a stray cat, Kanda Sorata is forced to live in the smaller Sakura Halls where problem students are sent to live. Although he doesn?t mind his roommates, Sorata can?t wait to move out of Sakura Halls. But when Shiina Mashiro moves into the dorm, everything changes. Mashiro is an artistic genius who, at a young age, won many awards for her skills, but due to her childhood being so focused on art, she has no common sense and social skills. Forced to take the role of taking care of Mashiro, Sorata learns about himself and begins on a path of self improvement.

A young high school couple out on a date saw what looked like a falling meteorite, and inside, they discovered a little baby girl! The two of them married and adopted the girl, who they named Morumo, as their own. The only problem with this feel-good story is that now, as a high school freshman, Morumo is 16.4 meters tall!

Morumo still has a pretty happy life. She's popular with locals and tourists alike, and she goes to school everyday with her childhood friend Miharu. Then one day, a mad scientist, who specializes in experimenting on young ladies, injects Morumo with a serum that reduces her to 1/10 of her normal size. Her weight remains the same, so she is super-dense and tough like a superhero. Suddenly, it seems like all the joys of an ordinary life are within her grasp!! Sadly, the serum's effects are temporary and soon Morumo returns to her giant state.

But now that she knows a normal life is possible, Morumo is not going to give up! Even if it means she and Miharu have to allow a mad scientist to experiment on her, surely the ends will be worth the means!

It has been seven years since Sora Ono was sent to another world, where she was enslaved. Because of a clerical error, her “slave” status was revoked, and Sora walked away a free woman. Then one day, she purchases a slave...

"Hey, boyfriend, how you doing?"

Souta Sakuhara is a first-year high school boy. His first ever girlfriend has just been stolen away from him by a "girlfriend." That girlfriend is Shizuno Mizushima, a tomboy who's also the tallest girl he's ever met, who's now his hated rival in love, taunting him with it. But then…

"Since nobody else wants to be your girlfriend, how about you go out with me?"

She suddenly pins him against the wall! She also started saying, "Give me a month, and I'll make you fall in love with me…… I'm not going to let you go so easily!"

A one-way romantic comedy in which a handsome and beautiful girl will tempt you every day!

"Akatsuki" is the first ray of light emerging from pure darkness. "Samson" Takaki is the ace wrestler and company president of the Akatsuki Pro Wrestling group. Samson has devoted his body and soul to his wrestling career. Now, Samson not only has to endure the bodily damages caused by his long wrestling career, but he has to face prostate cancer. However, this doesn't deter Samson. He continues his fight to bring joy and entertainment to his fans.

Reishi Kiyota, a ronin student, has a phobia of love due to a traumatic experience and has never been with a woman in his life.
His neighbor, Aika Toyokawa, an office worker, likes Reishi and tries to seduce him with all her might..!

A handsome, slightly erotic, and love comedy.

A very ordinary and serious high school student, Kamou-kun.
Though his days are filled with diligent study, his concern lies in his childhood friend, Katabami-san, who interferes with his studies every day. And to make matters more complicated, Katabami-san's true identity is... a fox spirit!?

The struggle between Kamou-kun, who doesn't want to be bothered, and Katabami-san, who craves attention, begins anew today!

Hiiragi-san is a single woman who is exhausted from work and life. No matter how depressed she is, she always ends up hungry.

Abu Eiko, 29 years old. Single, no boyfriend. Her criteria for evaluating things is whether they are 'normal' or not. Her obsession with 'normalcy' begins to unravel her relationships with those around her. What is 'normal'? What is 'abnormal'?

A mysterious girl and a strange ammonite I met at my new school. I want to dream of the Cretaceous Period with my "favorite" girl! The humble and passionate adolescence of me and her, who devote their high school life to excavating dinosaur fossils, begins!

Youth Romcom about a transfer student boy meeting a fossil fanatic girl in his new school who is introducing him to the paleontology club

A world where machine civilization has perished and immortal monsters called "Monotsuki" are rampant. Isana, a girl born in a remote village, meets a mechanical person who lost her memories and looks exactly like her sister, who should have disappeared in the ruins she wandered into. Convinced that "My sister is alive," Isana gives the mechanical person the name "Hime" (princess) and together they set out on a journey to find her sister.

The strongest female warrior of the west, Seraphina de Lavillant, was defeated by barbarians of the east.
What awaits her are endless days of torture...is what she thought.
Instead, she was offered "marriage to the barbarian king"!?
The start of a fantasy world marriage by former enemies!

Hino is your average high-school student. Sakuba is an amazing, talented, honor-roll student. But when Hino discovers Sakuba's secret half-demon identity, his life becomes anything but ordinary.