Regret is the bane of old men. When aging Alliance Lord Hajin Cheon of the Grand Martial Alliance reflects on his immense legacy, he finds that he recalls little of his deeds or even the lives of his closest advisors. Stricken by a mysterious ailment, Hajin suddenly passes away only to wake up in the body of Ridan Byeok, heir to the Byeok Clan of swordsmen. The only problem is, Ridan is a well-known wastrel, the polar opposite of the virtuous and stern Hajin. Righting the wrongs of his predecessor, Hajin begins to uncover the truth behind his death…

In middle school, Konoha Satou dreamed of escaping into a world like that of Dark History, a romantic fantasy novel she wrote telling the story of the count's daughter Konoha Magnolia and the knight she falls in love with. Years later, her mother rediscovers that novel - only for Konoha to get hit in a traffic accident and die!

When she opens her eyes, she finds herself in the world of her own creation as the heroine's younger sister, Iana Magnolia. Somehow, she's been reborn as the character she created to be the greatest villainess of all time?!

Ghost-seeing School Boys oneshot included in volume 1 as chapter 3.5

A HEAVENLY ENCOUNTER!
Mahiru is a beautiful girl whose classmates all call her an “angel.” Not only is she a star athlete with perfect grades—she’s also drop-dead gorgeous. Amane‚ an average guy and self-admitted slob‚ has never thought much of the divine beauty‚ despite attending the same school. Everything changes‚ however‚ when he happens to see Mahiru sitting alone in a park during a rainstorm. Thus begins the strange relationship between this incredibly unlikely pair!

Saitou is an ordinary handyman that gets transported to another world where his skills are very useful. He starts to really understand what it means to be needed.

At a rural junior high school, a man and a woman vowed an eternal friendship. The relationship between the two who became a fateful community toward one dream-two years have passed without any particular progress ...!

Yuu Natsume, a flower-loving plant boy, and Inuzuka Himari, a girl who hasn't been in love for the first time yet, have been peacefully close friends in the gardening club with only two of them.

Licht, a young man who has the special ability, [Resurrection], makes his living as a member of an S -Rank Adventurer's Party.

However, the King, who feared his power, ordered his comrades to betray him, and in the end, executed him in an unfair manner.

But Licht, who was fortunate enough to be revived because of his own skill, now swears to carry out his revenge on Humanity…

One day after summer break, the perfect young lady, Sana Tsukuyomi, showed up at school as an undead. As a school health committee member, I, Hiyoshi, ended up helping her navigate her daily life, despite her movements being as stiff as a corpse’s… A school romantic comedy featuring a heroine who’s both scary and cute!

Remake of the Imperial Grail War from the Koha-Ace manga. The protagonist is Akagi Kanata, who gets transported 75 years to the past to participate in a Holy Grail War in the midst of World War 2.

Having survived an isekai for 17 years, 34 year old Ojisan (uncle) returns to modern day Japan. Takafumi, Ojisan's nephew, now gets to witness what throwing a die hard Sega fan into an isekai for 17 years does to various things and people, both past and present.

A man is stabbed by a robber on the run after pushing his coworker and his coworker's new fiance out of the way. As he lays dying, bleeding on the ground, he hears a voice. This voice is strange and interprets his dying regret of being a virgin by giving him the [Great Sage] unique skill! Is he being made fun of?

The story is about the forbidden romcom between 7 siblings.

From MangaHelpers: For the entirety of his life, Yokoda Takashi has been drawing erotic drawings and it has been his way of expressing his sexuality. And now, he has managed to become a successful erotic comedy manga author for a monthly magazine. His series stars a character named Aimi who is actually based loosely on his niece with the same name. He keeps his job a secret, especially from his family from the fear that using Aimi’s name in such a perverted way would cause hatred from everyone. But his manga’s popularity rises and gets moved to a weekly magazine where there are vastly more readers and it seems like only a matter of time until the truth comes out. Takashi has to struggle between protecting his secret while keeping up with the production and erotic creativeness that comes with a weekly magazine series. [vyc]

"Please don’t touch the guy wearing glasses…"
Department head Kim, who quit his job as a special agent only for his daughter Minji and chose to be normal. Then one day, Minji disappeared silently, and Manager Kim began to find his daughter by turning the country that monitors him into the enemy.

After killing his brother, Clois ascends to the throne. His desire to become emperor was not for personal gain but for the sake of his beloved wife and soon-to-be-born child. However, upon his return, the corpses of his wife and child greeted him, demonstrating the futility of his efforts.

Seven years later, he couldn’t find joy in anything in the world. So, he didn’t care about the re-opening of the gifted academy’s admissions after seven years. Until he saw a wrinkled application form rolling on the floor. Instead of trying to enroll the child in the gifted academy, he offered various excuses. The document, thrown away like trash without even being considered due to being from a workhouse.

“I approve this child’s admission.”

He wasn’t particularly interested. It was just a warning to those who tried to act arbitrarily. So he couldn’t even remember the name of the child he picked.

“My name is Ivy Alden.”

The child he met in front of his wife’s and daughter’s graves resembled the daughter he had always imagined.

Humanity has been oppressed for hundreds of years due to the rise and invasion of the natural enemy "demons".
The world was ruled by the "Great Demon Lord" and his 47 "Demon Lords".
While people live in fear, 47 people selected from all over the world have been named "Heroes" and are preparing to fight against the Demon King's army.
And now, a desperate operation with the survival of mankind on the line was about to begin.

Ao Minato, a young man who killed his father-in-law who repeatedly abused his family and entered a juvenile reformatory. However, the sister who should have protected committed suicide at the end of suffering, and her sister Akane is also missing. Ao, who arrived at a certain shrine, wished for the safety of his sister, which is the only hope left, and swears to God that he will do anything for that ... The blockbuster panic suspense "Massacre Happy Ending". The new chapter is finally opening---.

In a world where the demon lord had been defeated and peace had arrived, Rex the magical doctor ran a clinic. But the patients brought in were all beyond saving compared to the world itself, people who'd XXX slimes or stuck their peens into man-eaters!? An otherworld perverted medical comedy begins!!

“Be quiet. Shut up and live like the dead”

Ebony Vonieck is a convicted felon for the murder of her fiance and father. While waiting for her execution in prison, she is suddenly released from her hell when she is informed that the Archduke of Schneider Castle is waiting for her. Expecting her life to become a living hell, what awaits her instead is a household of warm employees and servants. Ebony has no idea that the Archduke will help change her life.

"All things are born, and all things die. That is the law of heaven." According to legend, the Bird of Fire, called the Phoenix, is the eternal spirit of life, death, and rebirth. She oversees the cycle of reincarnation and the rising and falling of civilizations and species. Those who can obtain her blood will be granted eternal life, while to others she can grant infinite wisdom or eternal suffering. Throughout history, from the dawn of civilization to the extinction of the human race, those human souls touched by the Phoenix have hunted her over and over in multiple reincarnations, and their actions in one life determine or reflect the sins and sufferings of other lifetimes.

Minato Seno, who has always been very shy since he was young, struggled to make friends during his first few days of high school. He also never got a glimpse of his classmate Nekozane-san's face, as she was always asleep at the desk next to him. However, one day after school, a chance encounter revealed a side of Nekozane-san that was completely different from the one Minato knew in the classroom.