The prequel to Otokojuku focusing on the early life of Edajima Heihachi, principal of Otokojuku. Ran for 10 volumes in Super Jump from 2003 to 2010. The story covers his university days, his war efforts, and much more about this mysterious man among men

11 soldiers who are on demilitarized zone search mission. Shut down General Outpost....They should have never gone there

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In the year 2000, a Chinese nuclear experiment went wrong mid-transit, resulting in Japan falling into ruin. Those who survived were housed in Japanese based American military facilities to escape from the deadly radiation and learned to live following regimented lives of labor and learning.
To relieve the boredom, a recreational drug called "Zero" was created and sold illegally. Taking the drug induced a dream filled sleep where people saw their lives as they were in the year 2000. And in the cases of those who hadn't been born before 2000? The most they could surmise is that they saw who they were in their past lives.
But it seems something is brewing below the surface, and those past lives may just hold the answer.

Suzuhara Kokoro and his blind little sister Yume find that all is not as it seems as they learn more from the other kids and see the actions of their teachers after being sent to live on a near-deserted island.

It's 217 AD, several decades after the end of the "Pax Romana," and the Roman Empire is still the most powerful empire in the world. However, between corruption in the government, increasing attacks from savage hordes, and continuing resource-draining foreign campaigns, the power of Rome is on the decline. With the recent assassination of the emperor Caracalla, many things are about to change...

Zelda no Densetsu - Skyward Sword is an One-shot based off of the popular Nintendo Wii game of the same name. It's a prequel that tells the sealing of the main villain of the game and Link's Childhood.

Joey wants to be a hero, but he's just an orphan who works day and night to take care of himself and his grandmother. After seeing a commercial for a toy robot, he desperately wants one, thinking the robot will give him the strength to change. The only one he manages to get, is a broken toy tossed aside by a school bully. But later on, he manages to fix it, and name it "Heroman." Later on, while walking home, he witnesses Rina (the pretty cheerleader that's always been nice to him) getting kidnapped. Joey tried to intervene, but the kidnapper knocks him aside with ease. Filled with Anguish, Joey grabs Heroman and scream that he wants to be able to change. At that moment, Heroman's controller changes, latches to Joey's arm, and Heroman become a large robot that only Joey can command...

+ Itazura na kiss manga
+ Rurouni Kenshin manga

Ichiyo and Akehiko (both 15 years old) have been brought up in an amicable environment at a prosperous restaurant in Japan. They live a safe, happy life, but, as was the norm in feudal Japan, they train at the local dojo with determination to become strong. The times are turbulent, and violence brims the streets of nineteenth century Japan. Under such conditions, the boys will have to learn what it means to wield a sword, to take someone’s life, and to understand the precarious life of living by the sword.

In Helios, 6 warriors go on an adventure to search for the magical jewel.

Based on the MMO ElswordOnline, specifically the Transform patch

The story revolves around Objects — powerful, massive weapons that change the course of warfare — and Elite Object pilots. An odd Elite girl named Milinda meets Quenser, a student who aims to become a Object mechanic, with the soldier-in-training Heivia on a snowy battlefield

Jio is a young magic user whose goal is to one day become the greatest magic user in the world! He lives a sheltered life with his master Iregaura, until the events of one day leave him to journey out into the world alone. Jio, whose magical specialty is making flowers bloom, has a lot to learn about the world outside his home, but he is still determined to achieve his goal!

(From the back) It is said that deep in the city there is a mysterious scientist in a black lab coat. His name is Kolisch. No matter how strange or mysterious the occurrence he will uncover the truth through his "Absolute Science". Unknown to all, a battle of scientific experiments begins now!

Since the first man, humans have shared the world with creatures known as the Jinn (Jinn plural, jinni singular) , sometimes they are known as spirits or ghost. They have been around before humans and have extraordinary abilities. They are unseen to the naked eye but can take the forms of animals, humans and other living things. Even though the Jinn live with free will, each human is also assigned an individual Jinni (a Qarin) to be their constant companion and whisper evil thoughts to them. Suddenly something happens in the world which allows humans strong particularly Willpower to be able exploit and use the powers of their Qarin and in some cases the powers of other Jinn. How will the humans use their new found power, will the Jinn fight back ? Read this series to find out more...

Meet the city of absolute public order, Astraea. In it, the elite make sure there is a 99% yearly arrest rating, so it's no wonder it is often called the City of Justice. However for the remaining 1% there's Double Bullet, the team made up of 3 "lower ranked" individuals Kanako, Tamaru, and Barret.

Cicero City, a city infested with immigrants where people of all races scramble to find work and shelter. Infested with destruction and slaughter, it's a chaotic society. Living on the outside of society, the Jackals are professional assassins with no allegiance, available to the highest bidder. This is their story.

Kusuda Naoki is a high school student who's lived quite normally for 16 years. But recently, disturbing visions of unbelievable creatures have begun to plague his peaceful - if slightly lonely - life.

Izayoi Takuma is a mysterious transfer student who implies that he knows of Naoki's "true past" and insists that they both possess great power which can only be properly unleashed if they work together. Naoki is confused, remembers nothing, and asks only to be able to return to his ordinary lifestyle.

Set in a Japan 500 years after an endless war called Eternity was called to a conclusion by a miracle, people live in The Time after Eternity. A form of Christianity has spread and the Vatican now controls everyday life; people are divided into the "deeply devout" and the "not so devout". Miracle engineering powers the economy.

Ogito, though he is known for being godless, for some reason is taken in as an intern in the Department of Saints in the Miracle Inspections section, partly due to his reading many forbidden books. He is immediately taken off on an inspection where a priest—the head of his three person team—is killed, and Ogito is left only with the priest's weird apprentice Izumi: a man who gave up his life to God to let his heart reside in a puppet.

With endlessly creative art and world-building, this manga is a feast of the unusual and a flowering mystery quickly leaving your preconceptions behind.