Manga like Nihonkoku Shoukan

Gate: Jieitai Kanochi nite, Kaku Tatakaeri

Also known as Gate: Where the JSDF Fought.

Status: Releasing
Genres: Adventure , Fantasy

One day in the 21st century, a gate opened in the middle of the Ginza district of Tokyo. Out of the gate poured soldiers and strange creatures, and they soon made Ginza look like an image of hell. The gate apparently connected Japan to another world, a world with a militant empire and many supernatural creatures. The Japanese Self-Defense Force decided to send a small group, led by a soldier who's also an otaku, into the other world on a reconnaissance mission. They're meant to learn what they can about the empire (and its plans), the world, and the people.

They're hardly in the world yet, though, when they come across a village destroyed by a giant fire-breathing dragon. The only survivor is an unconscious elven girl they find hidden in a well. Now they feel like they must warn the nearby towns about the dragon, and do what they can to help. On the way, they'll meet more magical, female companions, and learn more about this dangerous new world.

Tags: Military , Urban Fantasy , Politics , Primarily Adult Cast , War , Kemonomimi , Elf , Magic , Seinen , Slavery , Female Harem , Guns , Nudity , Gods , Monster Girl , Monster Boy , Gore , Prostitution , Anachronism , Tanks , Language Barrier , Otaku Culture , Dragons , Medieval , POV

Zipang

Status: Finished
Genres: Action , Drama , Sci-Fi

In the year 200X, a Japanese fleet consisting of 3 vessels leave on a mission to South America. After encountering a storm, the ship JDS Mirai find themselves without their escorts and in 1942, traveling towards the island of Midway to face the American fleet in one of largest battles in naval history. The crew of MIrai must decide whether or not to change the course of history by involving itself in WWII.

Tags: Military , Seinen , Primarily Male Cast , Primarily Adult Cast , War , Historical , Ships , Time Manipulation

Drifters

Also known as Drifters.

Status: Releasing
Genres: Action , Adventure , Comedy , Drama , Fantasy , Mystery

First he pitted the Catholic church against vampires, Nazis and Great Britain, bathing London in a flood of blood. But Hellsing creator, Kohta Hirano still had something crazy up his sleeve when he created his new series, Drifters.

Imagine a world of magic, full of elves and hobbits and dragons and orcs. Inside this world of magic and wonder there is a great war being waged, using warriors from human history as chess pieces in a bloody, endless battle. Hirano’s new concept gathers famous warriors throughout history and puts them on both sides of good and evil, and then turned them loose in a bloody melee of madness.



Note: Nominated for the 4th and 5th Manga Taishou Awards.

Tags: War , Seinen , Historical , Isekai , Samurai , Elf , Anti-Hero , Magic , Swordplay , Satire , Guns , Archery , Dragons , Anachronism , Demons

Sengoku Komachi Kuroutan: Noukou Giga

Status: Releasing
Genres: Action , Drama , Slice of Life , Supernatural

One fateful day, a girl time slipped into the Sengoku Era. It was an abrupt enough event to be dubbed god’s whim, done to sate hellish boredom. The girl has no power to change the world. She was a very ordinary, common, and plain girl that can be found anywhere. And that girl can do no more than a single thing. Survive the Sengoku Era ——– that’s all.

Tags: Female Protagonist , Historical , Food , Agriculture , Military , Rural , Time Manipulation , Samurai , War , Shounen

Sengoku Jieitai 1549

Also known as Samurai Commando: Mission 1549.

Status: Finished
Genres: Action , Adventure , Sci-Fi

A military test accidentally sends a modern-day army back in time to feudal Japan. When their actions in the past begin to have an effect on the present, another unit is dispatched to retrieve them. But the commander of the lost unit has other plans: He wants to use his advanced technology to conquer Japan and change his country's destiny.



Tags: Swordplay , Shounen , Historical

Youjo Senki

Also known as The Saga of Tanya the Evil.

Status: Releasing
Genres: Action , Fantasy

What would an ultra-rational Japanese salaryman do if he was reborn as a girl in a world where magic was real? Obviously, become the Empire's most feared magic soldier, while climbing the army career ladder at the ripe old age of nine. The only things standing in Tanya Degurechaff's way are a world war and maybe a supernatural being or two. But Tanya isn't about to let artillery shells or deadly spells stop her when a cushy desk job is calling!



Tags: Military , War , Reincarnation , Magic , Seinen , Anti-Hero , Politics , Religion , Historical , Isekai , Gods , Foreign , Guns , Primarily Adult Cast , Gender Bending , Tragedy , Satire

Shingeki no Kyojin

Also known as Attack on Titan.

Status: Finished
Genres: Action , Drama , Fantasy , Mystery

In this post-apocalyptic sci-fi story, humanity has been devastated by the bizarre, giant humanoids known as the Titans. Little is known about where they came from or why they are bent on consuming mankind. Seemingly unintelligent, they have roamed the world for years, killing everyone they see. For the past century, what's left of man has hidden in a giant, three-walled city. People believe their 50-meter-high walls will protect them from the Titans, but the sudden appearance of an immense Titan is about to change everything.



Note: Includes 2 extra chapters.

Tags: Dystopian , Anti-Hero , War , Tragedy , Military , Conspiracy , Survival , Philosophy , Kaiju , Shapeshifting , Memory Manipulation , Politics , Revenge , Henshin , Male Protagonist , Monster Boy , Terrorism , Medieval , Yuri , Post-Apocalyptic , Super Power , Gore , Time Manipulation , Body Horror , Ensemble Cast , Cosmic Horror , Time Skip , Cannibalism , Coming of Age , Slavery , Swordplay , Torture , Alternate Universe , Shounen , Espionage , Mythology , Amnesia , Tsundere , Kuudere , Class Struggle , Disability , Historical , Dissociative Identities , Drugs , Achronological Order , Religion , Heterosexual , LGBTQ+ Themes , Reincarnation , Baseball , Transgender , Suicide , Primarily Adult Cast , Acrobatics , Cult

Funsou deshitara Hatta made

Status: Releasing
Genres: Mystery , Slice of Life

The story follows Hatta Yuri, a geopolitical risk consultant who travels around the world solving problems.

Tags: Seinen

Hikikomori Renkinjutsushi wa Hikikomorenai: Oie de Nonbiri Shitai Funtouki

Status: Releasing
Genres: Action , Comedy , Fantasy

Celes is a reclusive alchemist with good abilities but no interpersonal skills.

One day, she decides to leave her home and goes to a country town on another continent. She settles down there. The medicines she makes cure intractable diseases, and she destroys powerful demonic beasts in a fight.

Before she knows it, the town is buzzing with activity, and the requests for her services come one after another!

A story about the struggles of a beautiful but antisocial alchemist girl trying to live a slow life!

Tags: Seinen , Hikikomori , Female Protagonist

Kajiya de Hajimeru Isekai Slow Life

Also known as My Quiet Blacksmith Life in Another World.

Status: Releasing
Genres: Adventure , Comedy , Fantasy

Eizo is a middle-aged, overworked software engineer who loves cats. One night after working late, he saves an injured cat from a speeding truck. The cat survives, but Eizo does not... Luckily, that cat turns out to be a god-like being who offers him a second chance in another world! Eizo decides that he wants a slower life, one where he can live off the things he creates with his own hands. So, why not become a blacksmith? He does have one other stipulation: a cat companion for his quiet life. These requests are granted, and Eizo is whisked away to a new world and imbued with blacksmithing knowledge. He soon finds out that his abilities are above average—in fact, his new skills are so overpowered that they’re like cheats. On top of that, his cat companion turns out to be a half-tiger girl! Eizo’s blades soon garner attention, and he realizes that he can turn the tides of battle with his forge and hammer. With so much commotion in store, will Eizo truly be able to enjoy a quiet life?



Tags: Shounen , Isekai , Male Protagonist , Reincarnation , Magic , Monster Girl , Nekomimi , Nudity , Found Family