Furuya Usamaru manga

Susume!! Seigaku Dennou Kenkyuubu

Susume!! Seigaku Dennou Kenkyuubu

Mamoru is a Nishiarai game player who has switched to a first-class powerful new high school named Hijiri Gakuen Koukou. There he met with a group of eccentric game lovers who call themselves Dennou Kenkyubu, he accidentally joined and had to undergo a variety of events and adventures with them. Translated by google from Indonesian

Ikka Ryaku

Ikka Ryaku

This is a series by the same author as Hellsing. It's a story about a girl that's new to the job of working in a gaming place. The chapters are short and it is read from left to right.
Genre: Comedy, Seinen

Hellsing

Hellsing

Vampires exist. It is the duty of Hellsing, an organization sponsored by the British government, to hide that frightening fact and protect the blissfully unaware populace. Along with its own personal army, Hellsing also has a few secret weapons. Alucard, an incredibly powerful vampire, has been controlled by Hellsing for years. Although he dislikes being a servant to the Hellsing family, he certainly enjoys his job as Hellsing’s vampire exterminator. Seras is a fledgling vampire and a former police woman. Although reluctant to embrace her new self, she is still a valuable member of the organization. Integra Hellsing, the current leader, is usually fully capable of fulfilling her duty, but lately, vampire activity has been on the rise. Unfortunately, the cause is more alarming than anything she could have imagined. A group long thought dead has been plotting in secret since their apparent destruction over 50 years ago. Plotting to plunge England, and perhaps the entire world, into war.

Hellsing: The Dawn

Hellsing: The Dawn

The pasts of Walter, Hellsing and Millennium are revealed in this exciting prequel to the main Hellsing storyline, which takes place during the WWII era -- September, 1944 to be exact -- somewhere around Nazi-occupied Warsaw, Poland.

Gunmania

Gunmania

Bando Eiji is a hitman (Though he hates to be called as such...) with more than a few screws loose. This 3 chapter mini-series from the creator of Hellsing follows the escapades of the demented Bando as he picks off one target after another whilst simultaneously confusing the hell out of onlookers with his unhinged mental disposition! (summary from MAL)

Drifters

Drifters

The story of Drifters takes place during Japan's Sengoku period (roughly XV to XVII century), a time of constant warring between the island's states, and a natural setting of choice for samurai stories. Young samurai on verge of death suddenly finds himself into another, fantastic world. How? Why? These questions remain unanswered

Daidoujin Monogatari

Daidoujin Monogatari

We follow Kinoshita, a bright youngster with big dream, as he tries his luck selling his self-published doujinshi on comiket for the first time and meet new friends that will change his future forever.
Genre: Seinen


Assassine

Assassine

It is the near future and the age of criminal organizations fighting for territory with their own crew has ended as they figured that it was neither economical nor practical. The new method of territory warfare is done with each criminal organization hiring an assassin and betting their land on which assassin survives the modern day coliseum. Bando Eiji aka Gun Mania is a top rated assassin for the Kuroyanagi group. A young man named Kusano Nonomura of the now overthrown Kusano organization seems to have a vengeance against Bando, the Kuroyanagi family and the entire criminal world. Blood will be shed very soon.