Seinen Manga Online | MangaNato

Please Stop the Pope

While livestreaming about his struggles, Siwoo receives a donation with a strange request. He agrees, only to discover it came from Limen, the goddess of Eden, who has suddenly tasked him with defending her world from seven demon rulers. Ten years later, Siwoo returns to Earth as the pope of Eden, only to find it overrun by monsters. The demon rulers show signs of reappearing, and to maintain his divine power, he must spread Limen's faith across Earth. Can Pope Siwoo complete his holy mission?

Yuusha Ikkou Ni Senzokui

Takuma Uzuki, the “tragic doctor” who lost the use of his right arm in an accident, wanders into another world while chasing a white cat that has wandered into the hospital. There, in a structure called “The Bastard of Disaster,” he encounters a strange figure…!

Tsuihou Reijou, Craft Shinagara Camping Car de Isekai o Tabishimasu

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High School Conquest: The Battle Against the Bullies

The son of the world's top assassin organization leader, Doyul, has transferred to a Korean high school! Coming in with nothing, Doyul takes on a request from Dong-gu, a victim of school bullying, and begins taking down the local delinquents one by one?! The story of a man who rises to become the strongest in the War Against Bullies universe!

Tenkaichi - Nihon Saikyou Mononofu Ketteisen

Battle tournament manga set in Sengoku era.

Fog Land

Fogland, a mysterious international prison, traps Dante Kang a science teacher sent to reform prisoners during a sudden riot, leaving him with only one way to escape: by becoming a leader.

A Rare Marriage: How to Grill Our Love

When 30-year-old Kenta meets stoic graphic designer Chihiro, he sears her cool exterior with his passion for barbecue! Now, after a flash of a courtship, they are newlyweds! Though their jobs keep them apart, they still have weekends together to grill, and fine meat isnt the only thing heating up in this sizzling relationship!

Demon Lord, Retry! R

A new chapter begins! The journey of the mightiest demon lord continues. Encountering the mysterious entity behind the world's creation, the Demon Lord traverses the dungeon's depths to reach the demon domain, where devilish factions duel for supremacy. Adding to the mix is a lively and energetic high schooler, injecting more friction among the already explosive personalities of our protagonists.

Record of Highserk War

After succumbing to a heart attack, Raizou Takakura found himself reborn in another world as the impoverished third son of a farmer. In this new life, he went by the name of Walm and served as a soldier for the Highserk Empire – a small nation currently under attack from its larger neighbors. To survive, Walm had to resort to killing, spending his days defending his empire and witnessing the brutal aftermath of battles. As the Highserk Empire planned a massive invasion against Myard and the Ferrius Kingdom, Walm found himself immersed in bloodshed, constantly reminded of the fragility of life.

Shoukan Sukiru o Keishou shitanode, Kiwamete Miyou to Omoimasu! ~Mofumofu Mahou seibutsu to Isekai Life o Mankitsuchuu~

One day, an ordinary young man is handed an unexpected gift by a beautiful girl: an “Isekai Reincarnation Ticket.”

Smiling Boxer

Gang Chan, a young man from a rural village, dreams of becoming a boxing champion. To repay the elders who raised him, he trains relentlessly every single day. But one day, a group of men in black storm into the village, intent on pushing a shady redevelopment project. Gang Chan stands up to protect the villagers, but the odds are overwhelming. As he breaks down in tears, blaming himself for failing them, someone appears... someone who will change his fate forever.

Himegoto Kakushigoto

Private Debtors

Kim Sang-an, a cold-blooded loan shark. When his sister, a school teacher, takes her own life after being relentlessly tormented by her students… He becomes their new homeroom teacher to collect the “debt” of her life. A debt collector who would crawl into the depths of hell to get what’s owed, and students who are nothing short of demons. A brutal “teacher-student” relationship begins now. Original Webtoon: Naver Webtoon, Naver Series

Monkey Peak the Rock

Single Middle-Aged Man’s Isekai Life

Oda Gentoku, a handyman who runs a small “odd-jobs” shop in town, lived a carefree life while proudly declaring he would stay single forever. But one day, while working on an electrical repair job, he’s unexpectedly electrocuted and wakes up in another world! This is the story of a middle-aged man who remains steadfastly single, takes up his craftsman trade once again, and enjoys a free and easy life in another world.

Secret Affairs, Hidden Truths

The fact that he was an illegitimate child came to light after his father's death. Ueda Naoomi, who fled from home in shock, meets Fujisaki Yuzu, a girl who has also run away from home due to family troubles. Yuzu asks Naomi to cooperate in a staged kidnapping to make her family worry about her. During the time they spend together, they gradually fall in love, but at the end of their journey, a shocking fact is revealed...!?

Huashan Sect's Greatest Genius of All Time

Baek Un-ho, a third-generation disciple from a respectable family but lacking inner strength, may be expelled from the Mount Hua sect. However, one day he stumbles upon a fateful encounter with Mong Won-kyung and emerges as an unparalleled prodigy of the Mount Hua sect. Just how powerful will Baek Un-ho become?!Original Webtoon:,

The Greatest Lady Boss "Takizawasan"

While undergoing initiation at XOX Corporation, Kouta Takeda is struck by his attractive new employer, Kyouko Takizawa, who proudly displays her voluptuous chest.

The Delayed High School Life of a Laborer

Facing challenges from a young age, 18-year-old Manami Katagiri had to leave middle school and worked in a factory to support his younger sister. He resolved to improve his situation by returning to high school. However, on his first day, he crosses paths with a self-proclaimed "princess" who appears to have never worked a day in her life. Is it love at first sight or the start of a rivalry?

Exiled Hero Picked Up by a Demon

For nineteen years, Wel stood as the Holy Sword Hero, defending the Kingdom of Klenrad from monstrous threats. With just one year left before his retirement, betrayal struck from the shadows. Framed by the royal princesses, he was branded a criminal and exiled from the kingdom he bled to protect. Stripped of his name and honor, Wel vanished beyond the borders of mankind—into the lands of the demonfolk. There, he was taken in by Natalia, a fierce warrior of the Oni Tribe, and her daughter, Delilah. Wel began a new chapter among the demonkind, gradually finding peace as he built a quiet life in their village. As bonds grew between him, Natalia, and Delilah, the former hero who once stood at the forefront of war now embraced a life of warmth, healing… and the calm before whatever storm might come next.

The Pig-Slaughtering Blade That Pierces All Realms

Ye Chuan—a mental patient—sees all living creatures in the world as pigs. On the day he changes professions, he awakens a life-class occupation: Butcher. His teachers and classmates are gravely disappointed, and even his childhood sweetheart leaves him. However, the Butcher profession grants him extra damage against pigs and halves the damage he receives from them. Since he sees everyone as pigs, he uses a single butcher’s knife to rise up and become a god!

Assassin's Pride

Kufa, a youth, is appointed to serve as a mentor to Mareida, a troublesome girl born into the household of a duke, in order to assess her inherent abilities. In a society where only aristocrats possess the authority to battle the monsters known as mana, those who hold the power are limited. Nonetheless, if Mareida proves to be unskilled, Kufa's assignment possesses a sinister dimension, since he is tasked with terminating her.

Oishinbo Manga

Around the offices of Tozai News, Shiro Yamaoka has a reputation for being over-blunt, under-ambitious, and generally an all-around slacker. So why has he been given the important job of coming up with the “Ultimate Menu“ to celebrate the newspaper’s 100th anniversary? Because he possesses qualities his other colleagues don’t: an exquisitely discerning palate, an encyclopedic knowledge of food and drink, and a masterful touch in the kitchen. This series received the 1987 Shogakukan Manga Award for seinen/general manga.

Fukushuu no Tensei Kizoku ~Subete o Ubawareta Daikenja, Onore o [Fukusei] shite Nidome no Sei o Eru~

Getting revenge against rotten nobles who are power-hungry! A dark fantasy is about to unfold! In a world where abusing prisoners of war is considered normal, there was a genius mage named Rein who was bestowed the title of "Great Sage" despite being born as a prisoner. However, that prisoner along with his land and fame that he obtained, was nothing but thorn in the side of the nobles that needed to be purged. Rein, who was set up and killed mercilessly, used his magic to duplicate his own soul. He then reincarnates as the son and heir of his sworn enemy, and swears revenge against the nobles that killed him! Come, it's purging time.