From Dynasty Scans:

10 years ago, high-school student Sanpeita dreamed he was engaged to a beautiful girl. One morning, an unknown homely girl suddenly pressed him for marriage. The homely girl was named Kemeko.
In order to escape, Sanpeita left for school where Kemeko followed and showed up with an uproar. A larger disturbance was when Sanpeita was targeted by a rice cooker on the school's rooftop.
As Sanpeita and his childhood friend Izumi were being attacked by the rice cooker, Kemeko saved them both. What is the girl's true shape!?

A fantasy story about Kiska, a boy who is mistreated by the villagers. He manages to survive thanks to his childhood friend Namia, who was the only one by his side. One day, Namia is murdered by three men, and Kiska is accused of the crime and banished to an inescapable class S dungeon. However, he finds himself in a different world where he can use "Save and Reset" to get back on his feet no matter how many times he dies. The story is about Kiska's quest for revenge against those who wronged him and his friend

Lin Jie is an otherworlder who manages a bookstore. He’s kind and always recommends soul-healing books for his dejected customers. Sometimes he’d even share his own works too. As time goes on, these customers start to respect him a lot. They bring simple local products every day to show their gratitude and ask for book recommendations. They even start telling tales of this ordinary shopkeeper. His respectful and cordial titles include “Hyena of the Evil God”, “Herald of the Flesh Gospel”, “Author of Cultes des Goules” and “Shepherd of the Stars”???

As the master of the School of Unholy Arts and as the undefeated Unmasked Demon, MookHyang unfortunately falls to a strange fantasy world by the magic of his enemies (School of Blood Arts). In the new world of elf, sorcerer, knight, and dragon, MookHyang’s adventure of finding a way back to his old world (Murim) unfolds.

People called “challengers” are gambling their life trying to escape from The 100 Story Tower to win 10 billion yen. But what will happen when Tatsuki Kuroumi awakes at this tower without remembering anything about his prior life, including entering the tower as challenger?

The Sukaku (Zhu He) family is a distinguished line of shamans that protects mankind from divine beasts. Our protagonist, Mutsuki, (Wang Yue) bears a promising future while his sister Uzuki (Chu Yue) completely lacks the capability to use any spiritual techniques. "You are not a child of Sukaku if you are not a shaman." Bound by those antiquated customs, Uzuki is forbidden from leaving the house. As her older brother, Mutsuki is determined to free Uzuki from her confines.

"THE NEW GATE", an online game that trapped its players and turned into a death game, was now releasing the thousands of players that had been dragged into it, thanks to the efforts of Shin, one of the most powerful players. But after having defeated the last boss and freed everyone, he was swallowed up by a strange light and found himself inside the game world 500 years in the future and unable to leave.

High school freshman Eugene Korekishi is an honor student with zero psychic powers who does not believe in ghosts! However, his high school life takes an unexpected turn when he meets a maverick boy named Mogari Shishikuno, who exorcises ghosts by eating them!

Reborn as a willow tree!? Resurrection of spiritual energy, rise of all things. The reborn willow has also embarked on the path of evolution. It can evolve infinitely, is it “divine power” or “curse”?

With a dream to become the ultimate Chinese cuisine chef, our protagonist finds himself inexplicably transported to the Song Dynasty in China! However, upon awakening, he discovers that he possesses no martial arts skills whatsoever. All that remains are the culinary techniques he mastered in his previous life. Surprisingly, these dishes… receive an overwhelmingly positive response!

Can he, with a single bowl of Jjajangmyeon, truly conquer the martial world?
Will he be able to captivate the Central Plains with his Jjajangmyeon and lead a successful second life in this era?

After losing his girlfriend to a brave hero, Toru is expelled from his S-Rank party. With a feeling of sadness and pain in his heart, he defeats a demon he meets outside the city, and his ability [to save experience] is broken! Toru becomes level 300 in the blink of an eye! With this power that far surpasses that of heroes, there is nothing that can stop him. Kaede, a slave he met on his journey, forms a group called the "Mangyu Brigade", and easily completes dungeons, acquires the legendary sacred weapons, and thanks to his skills, his friends level up easily! He rescued a countess who was attacked by bandits on the road, and befriended a legendary beast. Oru's journey continues at a leisurely pace, as he repeatedly encounters various people along the way, while his former party of heroes are deprived of opportunities to play an active role and fall into decline. This is the beginning of the life of a 300 level warrior!

Original Webnovel: https://ncode.syosetu.com/n9483ge/

In a world without cheats, a cultivation chronicle of wisdom and schemes. Among the students that were sent to another world were three childhood friends: Nao, Toya, and Haruka, who act to find equilibrium and create for themselves a peaceful place of living in the severe environment of a medieval-styled world. Whether it be mutual cooperation in monster subjugation or collection quests, there are no thoughts to become a hero.

Average high school student Mikagami​ Kouji is a hardcore gamer. One day he gets isekai'd and he only gets the skill "copy" which is apparently useless but we all know it's secretly OP or something. He's enslaved to be a gladiator by his summoner, the big booba, head priestess Zayd. He has to fight in the Colosseum and if he loses he gets raped.

From a thieving child to one who would shake the world. Rising to the title of Immortal Master, one of the Godly Twelve Stars, but ultimately betrayed. Now, he has been given a chance to change that, and create a better future- for both him, and the world. Based on the popular novel of the same name.

His only family, his younger twin, has been murdered. He isn’t as talented as his late genius brother, but in order to get his revenge, he will become “strong”. Will I be able to get my revenge?

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.

The infamous leader of the assassins known as the Shadows, Raon, had lived his entire life as a dog on a leash.

However, through a twist of fate, he obtained a new life—as the grandson of Glenn Zieghart, the Destructive King of the North!

He prepares to use the Ring of Fire he still possesses as an infant to begin cultivating when he's diagnosed with the Curse of Frost.

With the odds stacked against him, will he be able to finally stand on his own feet and live life by his own will, to become the strongest swordsman on the continent?

“I will slay anyone standing in my way of revenge…
even if it is a god.”

Action thriller about an obsessed lonely man with a delusional plot to save Japan by assassinating a politician. But his twisted plan is disturbed when he witnesses a young girl next door getting abducted by the Yakuza. He decides to save her but his attempt ends in a chaotic massacre where he manages to kill the gangsters. But things only get worse from here on out, now he's getting hunted down by even more ruthless killers.

Akira Kamishiro was a very successful manga author, who was diagnosed with blood cancer one day. He regretted the way he lived, where he could only build up empty relationships. Angry at his mother for asking him to send her some money, he died in a car accident. He was given a chance to choose his new mother and reincarnate in another world.
Akira, not wanting to have a repeat of his past life, decided to choose an ordinary but safe life.. He was reincarnated as Akira, the only son of a magic store, with his previous life's memories. He had no talent for swordsmanship or magic, but he didn’t care as he was still loved by his family. At one point, he realized that he can embody various things by "drawing a picture". That's when he noticed his cheat ability...!?
This is a story of Akira who wanted to live a mediocre life in another world and his adventures to protect his peaceful place!!

The Empire of Britannia invaded Japan using giant robot weapons called Knightmare Frames. Japan was reduced to Area 11, an imperial colony, and its people referred to as the Elevens. At the time, Lelouch, a young Britannian boy exiled to Japan, vowed to his Japanese friend Suzaku that he would destroy Britannia. Years later, Lelouch is a high school student who regularly skips school to play chess and gamble. When he stumbles on a terrorist group of Elevens who are caught by a Britannian task force after stealing a military secret, Lelouch is unexpectedly reunited with Suzaku, who works as a member of the Britannian military. As the rest of the task force arrives, Suzaku is shot for disobeying orders, while the military secret, a young girl, gives Lelouch the power to make anyone obey any order. Taking command of the terrorists, Lelouch adopts the alias "Zero" and begins his rebellion to crush Britannia once and for all. However, his greatest friend soon becomes one of his most troubling enemies when Suzaku becomes the pilot of Britannia's new test model Knightmare, the Lancelot. Note: Storyline is a bit different than the anime.