In A.G. 151, the space pirates "Bisidian" have taken advantage of war to extend their power. The Bisidian are associated with Ract Elfamel who supports them in finding the treasure. Once they have located the treasure, Captain Angrazzo ordered his son, Wivik Lambro, to come up a strategy to retrieve the treasure Bisidian has been looking for for some time, but when he infiltrates a certain asteroid in pursuit, who should be lying in wait but federation veteran Largan Drace's platoon! (Source: Gundam Wikia)

Etsuro Sakagami is a college freshmen who feels uncomfortable in reality, but when he logs onto the combat MMO Versus Town, he assumes the personality of "Tetsuo," a karate champ on his way towards becoming the most powerful martial artist around. While his relationship with new classmate Fumiko goes nowhere, he spends his days and nights online in search of the invincible fighter Slasher Jack. Floating in between real and virutal, at last, Etsuro finds himself face to face with his most powerful opponent... (Source: Publisher Haika Soru's Description)

"Mumei no Hitobito Ishoku Retsuden" is a compilation of short stories by Hiroshi Hirata that talks about the lives of real heros but whose names do not appear in history books.

This single volume manga collects five stories of the samurai era that were originally published in Japan between 1971 and 1975 in various magazines.

Touma Itohara is not interested in love. He is comfortable with relationships where lines are drawn, and there's no doubt that it's fulfilling for him. "Oniisan, if you haven't left yet, let's go home together." But recently, there was a little change that occurred in his daily life: Rin Mamiya. She is his sister's best friend. A girl who often comes to their house... At first, their relationship was just that. But now that they go to school together, they go home together, and hang out together on holidays as a matter of course. They also also started to hang out on weekends, and their relationship grew stronger and stronger. Even so, Touma only treats her as a "friend of the opposite sex." But on the other hand, Rin seems to have her own feelings about this relationship...? (Source: Kadokawa, translated)

Miho is a gearhead, Hiroshi is her brother and Keisuke is a teacher. But one thing they have in common is that they're in love with cars and racing! So when rumors begin that the famous king of touge racing has returned, Miho and the others are determined to do whatever it takes to take the crown!

Shinogawa Hiroshi dropped out of school after being inspired by delinquents like Iguchi Tatsuya who live by their own rules and who speaks with his fists if anyone opposes him. He spends his days hanging out with other hoodlums, but Hiroshi is all mouth and if he gets into a fight, his ass is easily handed to him. However, this close group of friends, including Tatsuya, are there to protect him when his big mouth gets him in real trouble. However, there seems to be a storm gathering within the gangs of the city and Hiroshi and his crew might be caught in the middle of it! (Source: MangaHelpers)

Watching his little sister attacking and killing someone was a shock but the surprise was bigger when the corpse disappeared together with the feet of his little sister! What is happening? What are the 'replacements' and why, when his sister dies, he goes 'back' to the fateful night when everything begun? How can he escape this dead-end loop?

Tomoda Ryouichi is on his way home from prep school when he is suddenly asked to clean the universe from space pests. Together with the three female androids: Mitsuru, the attack unit, Sherazado, the defense unit, and Asheru, the mobile unit, Ryouichi becomes the invincible hero "Esugaiya" and defeats the pests to preserve the peace of the universe. [Written by orithyea]

2003 4koma anthology based on the videogame, "Shin Megami Tensei III: Nocturne."

It's the beginning of 1998. A young genius in electronic engineering, Tatsumi Daiba, has far exceeded the performance standards in the modern science with the creation of the SPARC. With SPARC´s excellent analytical ability, having built a network expanding over the whole world and having the capability to move its mechanical arms at free will, Tatsumi´s judgement over the evil in the city streets commences.