The manga will focus on the character Koharu Hidaka, who is a middle school teacher close to 30 years old in 2007.

After two years of being dormant inside Tsutomu Senkawa, an accidental encounter with their old nemesis violently wakes Birdy up. With Birdy kicking evil's ass once again, the dark secrets of the experiments conducted by the "Agni" corporation are slowly revealed. They seem to be dabbling with human body enhancement, creating what they call "beast men," to combat the alien invasions related to Birdy.

36-year-old Takaharu lives alone. After graduating from Art College, he has been living a quiet life while painting pictures. One day, his ex-girlfriend Kyou, whom he broke up with 17 years ago, comes to him with her daughter Minori and asks him to let them stay at his place. As in their college days, Kyou is attracted by the delicious food, and so the three of them begin to live together.

"Please send me back to the past." If he cannot not kill that person in this era, he just needs to go back to the past. The man used the "Great Regression Technique" to cross time, going back to the past he desired so much. The "Unrivaled Swordsman" who had lost everything, his family, friends, and life. This is his first step to taking his revenge.

Reina Izutsu (24) has just taken over as president of Izutsu Printing after the sudden passing of her father. Kenichi Ishizumi (37), a section chief at the company, worries about Reina, who's been coming down a bit too hard on the staff as she struggles to fill her father's shoes. One night, he runs into her at a park, drunk and frustrated, blurting out, "I can't take this anymore! I quit being the president!" Too tipsy to even recognize him as her subordinate, Reina lets her guard down, and under the stars, Ishizumi quietly vows to support her however he can.

The middle-aged man and airsoft enthusiast Daisuke Koga is summoned to a different world on his 40th birthday. Given the ability to turn airsoft guns into real guns, Daisuke must save the other world while traveling back and forth between reality and the fantasy world. Alongside female swordsman Rena, Daisuke becomes the only gun user and dominates in the fantasy world after work!

A man who has been reincarnated in a different world acquires the vocation of "pole master" in the new world! However, that special ability is not used to defeat enemies, nor to gain power, but to embrace the beautiful girls who appear one after another with all one's might! A unique story of conquering another world begins here!

The protagonist, “Sao” has been reborn with his memories from his past life. He’s born as a son of a rural villager, but his true identity is a reincarnated person with cheat abilities and the knowledge of the modern world. With the class “Rod Master,” he received as he grows up, and the many skills that came up with it, he can defeat enemies, help people, and even for sex.

The story begins with the protagonist, Wakou Ichiro, who decides to return home early from work to celebrate his second anniversary with his wife. But, when he opens the door of his house.... He finds his wife cheating on him! Although the marriage was short-lived, his life changes again when suddenly, a certain woman appears in front of him? Thus begins a new story, a new erotic comedy!

When the Devil King announces his retirement, he calls forth his two sons, Yomi and Sora, to give them each a quest. Whichever of them finds a pure Yamato maiden within a year would inherit the throne of the Devil King, while the other would die. Thus begins Sora's sex-fuelled adventure to find a woman that can satisfy his father...
(Sakigake!! Otokojuku Wiki)

A young priestess has formed her first adventuring party, but almost immediately they find themselves in distress. Luckily for her, the Goblin Slayer chose that place as his next killing grounds--a man who's dedicated his life to the extermination of all goblins, by any means necessary. And when rumors of his feats begin to circulate, there's no telling who might come calling next.

In a faraway future, Earth is shrouded in thick, heavy clouds. The sun no longer shines upon it.
A world in which most plants have withered away and oxygen levels have been depleted.
However, humanity has managed to survive by developing the technology needed to turn people into plants, producing a small amount of oxygen.
To live as a human being in an uncertain world, or to abandon one's own suffering and embark on a new life as a plantー
People are forced to make a choice.

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…

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.

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…

Every time she opens her mouth, it's nothing but abusive language, and her problematic behavior never stops. The protagonist has had enough and sets a “plan” into motion…??!

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.

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]

Hyeonseok Choi finally becomes the undisputed heavyweight MMA champion of the world, but gets hit by a truck, and dies.

A fairy, Rahel, appears and convinces him to fight as a hero in the afterlife, but accidentally sends him to the side of the demons.

Stuck in the demon world, he sweet talks his way into positions of power, but slowly discovers this battle between good and evil isn't as clearcut as it seems.