When Professor Zero presents a controversial theory about evolution, he expects criticism — not a complete collapse of the world he thought he understood.After a mysterious incident, Zero awakens in a reality where the boundaries of civilization are far broader than humanity has ever imagined. Beneath the surface of Earth lies an ancient and highly organized society built by an unexpected species: the Rats.Their civilization has no kings, no money, and no wars for power. In...

He does not seek to change the past.He seeks to understand it.Across forgotten dynasties and silent turning points of history,a lone traveler walks through time — observing rulers, rebels,philosophers, and ordinary people caught in the machinery of power.The Time-Traveling Wayfarer is a contemplative time-travel novelthat blends history, political thought, and philosophical inquiry.There are no battles to win, no timelines to fix —

I’m going to make this school my harem!When a cute girl asks Issei out, he believes his twisted fantasies are finally coming true. Too bad the girl sprouts a pair of black wings and stabs him with a spear on their first date! Saved by his school’s number one beauty, Rias Gremory, Issei is transformed into a demon and made her servant. Issei hopes to rise through the ranks of demonkind to grow powerful enough to create his harem, but in a city with fallen angels and insane priests, he’ll be...

In a world where humans evolved to be able to gain abilities through a new organ called a "Core". This core is a manifestation of the host's soul and their abilities are based on what their soul truly desires. Our story is seen through a boy named Ren.

When unlucky high school letch Issei is murdered by his first-ever girlfriend on his first-ever date, who should jump to his rescue but the hottest girl in school, Rias-senpai! She informs Issei that he's been reincarnated as a demon and that it's about time he got to work-for her! Caught in the bosom of an age-old war between angels and demons, Issei soon discovers that being enslaved by a demonic beauty isn't quite all that it's cracked up to be!

“RIAS GREMORY’S VIRGINITY BELONGS TO ME!”Issei is finally beginning to adapt to his new life as one of the beautiful Rias’s demonic servants. Just as things start looking up for the perverted high schooler, however, a cocky pretty boy named Riser arrives, claiming to be Rias’s fiancé! To save the prez from a marriage she doesn’t want, Issei and the other members of the Gremory Familia will have to battle Riser’s team. Even with the mighty Boosted Gear at his disposal, can Issei really win ...

In the late 21st century, a neurotechnology called Bridge has changed the world. Bridging allows a person to program their own body and mind to achieve untold enhancement. There was one problem: It only works in children.Within a single generation, a new world order developed. Bridged Children grew smarter, faster, and stronger than the Adults and demanded equal rights. The Adults fought back.During the ensuing war, Adams, a prodigy among the Children, hid in seclusion on t...

THE KNIGHT SEEKS REVENGE With a sports festival on the horizon, the Occult Research Club expects smooth sailing after all the recent trouble. Everyone seems happy enough-except for Kiba, that is. The pretty boy hasn’t been himself since he saw an old picture of Issei. Things only get worse when two beauties arrive in town with powerful Holy Swords called Excaliburs-deadly weapons Kiba long ago swore to destroy. Issei promises to help his friend, but do the demons really stand a chance agai...

Is love in the air between lowly servant Issei and his mistress, the bewitching Rias?! Reincarnated as a demon by Rias, the school beauty, Issei finds himself in servitude to his devilish mistress. But when Issei befriends Sister Asia, a nun from the Church, which is widely known to be hostile to demonkind, he's practically asking for a target on his back-as Rias is quick to inform him! Worse yet, when the good sister is kidnapped by a fallen angel, Issei rushes to her aid! But little does...

The fateful rating game has finally begun! Rias and her team may be hot stuff, but they find themselves struggling against Team Sohna and its members, who are putting their very lives on the line! When things look desperate, Issei's strongest-ever technique explodes forth! And it's coming for Team Sohna's...boobs?!

A VACATION IN THE UNDERWORLD! School's out for the summer, and Issei's already dreaming up fantasies of hitting on hotties at the beach. His master, Rias Gremory, has other plans for him and the rest of the Occult Research Club, however-a season-long training stint in Hell. As if that wasn't disappointing enough, Issei's instructor is a terrifying dragon that tried to kill him! It may sound like a brutal lesson plan, but he'll need it because a few of Vali's allies decide to crash an under...

Issei's on a rampage?! "President Rias's virginity is gonna be mine!!" President Rias, the beautiful young devil, is betting her engagement on the outcome of a "rating game," and Issei's joining the fight. But does he even stand a chance against Riser's harem of devil girls...?!