Japan in the future has a massive over-population problem. Scientists have traced the root of this problem to one particular individual, Junta Monamari. According to their records, Junta was a "Mega-Playboy" who sired children with over a hundred women. Each one of his sons inherited the Mega-Playboy gene too, so the problem grew exponentially from thereon. Meet Karin Aoi, a "DNA Operator." Karin is sent back to the past with a mission: to alter Junta's DNA and prevent him from ever becoming the Mega-Playboy, thereby eliminating the world's overpopulation problem. Junta's DNA can only be altered by shooting him with a special bullet called DCM which contains the chemical for suppressing the Mega-Playboy DNA. In return, Karin gets a vast sum of money... enough to make all her dreams come true. Will Junta become the playboy he is destined to be, or will his better self prevail? But Karin is falling for the real Junta too... and what of the sweet and kindly Ami who has secretly loved Junta all her life? What will happen to future Japan? (Source: Manganews)

In Gray City, a glorious but crumbling metropolis, a different world exists between night and day. Here we find Aimi Komori, a shy girl with a secret--her magic eyeshadow transforms her into Shadow Lady, an infamous thief who sees Gray City as her own personal playground. Along with her pint-sized, bat-winged sidekick, De-Mo, Shadow Lady turns the menacing metropolis absolutely upside-down! (Source: Dark Horse)

Ah, high school. Is there any better place to start fresh after a horrible middle school relationship? Nope! Not unless your ex ends up at the same school as you and is now your stepsibling. What was supposed to be a sanctuary of peace where I could avoid ever seeing her again has become a living nightmare! Everywhere I look, I see her—in my house, in my school, in my class. There's no escape! She even claims that she’s the older sibling. Like hell she is! But I won't lose to her. After all, I'm the older brother in this new family situation. That’s right, we’re family now. No matter how much we may have thought we loved each other before, we saw one another’s true colors and realized we weren’t meant for each other. That’s why even though we may keep up a buddy-buddy sibling act for the sake of our parents, things will never go back to the way they used to be. (Source: J-Novel Club)

The spinoff manga focuses on Nayuta Kani, who falls in love with the novelist Itsuki Hashima through her literature. Since Itsuki likes little sisters she decides that she needs to become a little sister for him.

Veteran adventurer Nick’s life is falling apart. Despite all the knowledge and expertise he’s devoted to his adventuring party, his respected leader kicked him out, his girlfriend dumped him, and his teammates shamelessly accused him of embezzlement. Tired, heartbroken, and looking for a drink, Nick chances upon a few kindred spirits who are jaded as he is. Together, these disillusioned adventurers form an unstoppable team out to save their bleak, depressing world! (Source: Yen Press)

Itsuki Hashima is a novelist who's hopelessly enamored with the idea of little sisters and is constantly surrounded by colorful characters. A world class genius and love-guru who's beauty almost seems a waste on her. A girl who's constantly troubled by her friendships, love interests, and can't even find refuge in her dreams. A ridiculously talented illustrator. Each of them have as many problems and worries as the next and they never have a dull day together as they play games, travel, and work together. From the same author of the famous *I Don't Have Many Friends*, Yomi Hirasaka! (Source: Yen Press) *Note: Includes four extra chapters.*

Not even a hero, Takumi Iruma gets accidentally mixed in with a group of heroes chosen to be summoned to another world. As compensation for the mix-up, a goddess offers him the right to choose any skill he wishes for! Hoping for a peaceful and quiet life that has nothing to do with fighting or going into battle, he chooses a seemingly boring creation skill. However, it turns out "alchemy" is the most powerful skill that allows him to create everything from a holy sword to flying ships! This cheat skill he unexpectedly acquired turns him into a wealthy merchant and makes him undefeatable in battles! A heartwarming adventure story about (possibly) the most powerful alchemist in another world! (Source: Alpha Manga)

A sorcerer who once been the top student of the famous Tower of Fang, now spends his time chasing around his hopeless clients as a moneylender; at least until his client comes up with a plan to make money: marriage fraud. Unwillingly being dragged in to the plan, Orphen encounters a monster who has long been his goal since the day he left the Tower of Fang. Between those who seek to kill the monster and Orphen, giving everything to protect the monster, his lousy but peaceful days end. Trying to turn back his sister, Azalie back to her true form leads to many more mysteries and the key to the secret to the world.

An anthology of short stories by various mangaka, intended for male audience.

After devoting his entire life to perfecting his skills, Zeph Einstein receives the highest accolade of the Crimson magicians. However, the following year, he uses a newly developed magic that can assess the true talents of a sorcerer and he finds that his Crimson magic is actually inferior to all his other skills... He realizes he has wasted all his years pursuing the magic he is most incompetent at, and the anguish propels him to create a magic that can take him back into time. He wakes up finding himself back in the body of his younger self. Together with the prodigy magician Milly and the handsome female swordsman Claude, Zeph goes on an adventure, and perhaps this time he'll be able to effectively and efficiently master his magic! (Source: Alpha Manga)

A story of love and drama between a girl whose body grows faster than her mind, and a girl who lives forever by killing others.

High school student Yuuma Fujikura resides in a living hell, courtesy of the vicious bullies who treat tormenting him as a game. That is, until he meets Ryou Amezato, a mysterious classmate who'll risk everything to protect Yuuma. Ryou is bold, cunning, and loyal, just about everything Yuuma could've asked for. But is he a guardian angel? Or a demon who'll drag Yuuma into an even deeper, bloodier hell…? (Source: Yen Press)