When I opened my eyes, I was inside a novel.
[The Birth of a Hero].

[The Birth of a Hero] was a novel focused on the adventures of the main character, Choi Han - a high school boy from Earth who was transported to a different dimension - alongside other numerous, rising heroes of the continent.
I became a part of that novel as the trash of the Count’s family, the family that oversaw the territory where the first village that Choi Han visits is located.

Choi Han became vengeful after that village was destroyed by a mysterious group of assailants, and grew incensed after he reported the matter to the Count's son and got brushed off. He gets beaten to a pulp.

“…This is going to be a problem.”

But, I feel like it is worth trying to make this my new life regardless.

The mafia boss of the Iwashi family is a high school girl named Konomi Minoko. But don’t let her appearance fool you; she has done and seen things normal citizens can’t even imagine. Under her control are two assassins who have gained legendary status for their deadliness and ability to get any job done. Ishikawa Rushia, codenamed Baret, uses a modified handgun that uses a custom made hollow point bullet that explodes the target from the inside. Shirato Marin, codenamed Francesca, uses a original weapon that is a mix between a throwing axe and battle axe. Both of them are Minoko’s high school classmates and seem like normal teenagers but are two of the most feared killers in the mob world who handle missions often involving other assassins and underground groups.

From MangaHelpers:

Tokitou Haruto, during his first year in middle school, lost all of his friends because of a Science Fiction novel he had read. He was so engrossed in the novel that he started calling men “Kei” and the ladies “Florlain,” which had spread throughout the school at that time. Unable to cope with the sudden exclusion, Haruto continued to isolate himself throughout his middle school years.

Now, as a first year high schooler, Haruto faces a new “problem.” One casual day at school, the classroom becomes perfectly still. Time has stopped again. Having experienced this time-stop multiple times, Haruto begins to wonder if this time-stop is actually a dream. But all of this doubt stops when he meets Sakazaki Kuon, someone else who knows and experiences the time-stop. She is also part of a team of members who defends the world from monsters who attack the world using this time-stop dimension: Kohakjal. What relation does Haruto have with a group who fends off time-stop monsters? Could it be that he's the only who can truly fight them off? [Midori-Mori]

Hika Souma, called Picasso by friends, is 17 and still without a girlfriend after being dumped 13 times. One day, a pretty girl who later introduces herself as Sujata drags him out from a moving train, and with her unwanted assistance, his childhood trauma toward demons (oni) takes the form of a real demon summoned out from his body.

From Cinderella Story:
Yue Cheng is collecting cats for her homework report, and what she did is captured by the cats' "watcher". And after following a cat that she wants to catch, Yue Cheng and her friend found themselves in the cat spirit's territory. What will happen...?

Due to some weird dreams, Nate discovers he can Travel to different parallel worlds. With his newfound powers—not to mention his best friend Carter—Nate travels through different places, meets new people, and discovers what being a Traveler is really about.

Before the start of high school Sakamoto Maki meets Homare-senpai and falls in love at first sight. When he find out she will playing basketball at the same school, he becomes cold and tells her not to talk to him. Kouta of the newspaper club then informs her the boys and girls basketball teams hate each other and are forbidden from dating one another! In a hasty move, Maki confesses her feelings anyway and gets ignored. Just as she's about to give up, Homare announces to the two teams that they are dating?!

A story about friendship. For those living in the village, hunting is an important part of becoming an adult. But what if you would rather make friends with your human food?

A young woman comes across a remote village that has an unusual form of worship.

Yuwen Jun (Cheng) came to Japan to get married because of childhood arrangement. Instead he got himself into a thrilling journey where kendo masters, detective sisters, young misses of rich families entangled with him. Yuwen Jun was stunned while facing so many unexpected incidents: "I just came to get married..."

VIVIAN IS A KIND AND BEAUTIFUL GIRL.SHE COMES TO DIRTOPIA AND OPENS A WEAPON STORE NAMED THE TREASURE HOUSE OF GOD IN THE YUQIANG CITY.IN THE SAME TIME SHE COLLECTS INFORMATION AND TAKES ADVENTURE WITH HER BEST FRIEND XIAO ME.. THEN A SERIES OF LEGEND STORY BEGIN...

Kim Jinho and Heo Chundo are trying to find ways to spend their lazy summer days. Suddenly, two women appear before them with a job proposition for them. Details? None, except that they will be "treasure hunting." With nothing better to do--and no other choice available to them--they are forced to accept. And so begins their journey of exploration, adventure, gags, dungeons, magic items, and guardian beasts.

Jubei lives for adventure. When he is hired by a mysterious woman to retrieve a mystical food that grants eternal youth, he thinks it's a simple job—until he finds out the secret of the special ingredient...

A relationship with secrets and killing in the gangdom! Xu Taiyang thought, except Duan Chao, no one in this world is born to be against him. This bastard can drive him mad in three words, calling him a dog, taking away his friends and his girlfriend-- but no body think Duan Chao is a bad man, on the contrary, they think Duan Chao is a charming person.

In an impoverished territory, to a poor aristocratic family, a single boy would be born. Destined to become the next feudal lord, this boy’s name was Pastry Mil Molten. Pastry, the possessor of a rare talent in his previous life, had a promising future as a confectioner.

Merciless thieves, rabid beasts, scheming nobles, a domain in drought, many hardships such as these will befall the boy.

Our handsome successor, armed with his ingenuity and love for sweets, will survive in this world of swords and magic.

With a smile on his face, aiming for a territory filled with happiness, the young Pastry‘s challenges begin.

The best sweets and the best story. A single boy’s journey to change the world. A royal sweet fantasy.

A manga about combat maids engaging in trench warfare

August 1893, church calendar. The kingdom of Nohmaland declared war on the Flatanian empire and invaded their territory under the pretext of atrocities against Patlasi within the empire In order to support the regular troops, the empire send the [armed service], and armed maid group tasked with guarding/policing the castle inside, to the front lines. The war against the kingdom still continues.

Mochizuki General Hospital boasts some of the most well-trained (and well-endowed) nurses in town. But though these ladies spend much of their day battling disease, their after-hours are spent fighting a very different sort of disease…Under the leadership of the hospital chairman, a handful of staff members and local teenagers form a group of mercenary assassins, targeting the “cancers” of society and excising those individuals before their wickedness spreads.
(Source: Yen Press)

A love triangle, a friendship triangle, an enemy triangle. Three friends placed together by fate to live out their lives.

From Shoujo Crusade:

Noa doesn't have a father. She lives together with a working mother. That's why she always hoped for a sibling. One day her mother brings Mizuki and Akari to live with them. Noa is extremely happy with that, but why does Mizuki always show an unhappy face? Will Noa's dream for a sibling come true?