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Sci-fi

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Xenon

A dramatic story set in contemporary Japan, about a guy with amnesia, who finds out he was turned into a super-cyborg in a corporate weapon research program. He goes on a mission of revenge. A little shallow, perhaps, but a good example of shounen SF/action manga. The manga ended abruptly, because the magazine it was being serialized in changed its target public and it was decided that Xenon didn't fit in anymore.

3.5
533
Chapter 4 Dec 21, 2011
Chapter 3 Dec 21, 2011

Xenosaga Episode 1

An official Japanese manga adaptation for the series was written by Atsushi Baba and serialized in Monthly Comic Zero Sum. As of 2006, Baba has finished development of Episode I's adaptation and is currently working on Episode II.

4.2
2.1K
Chapter 18 Jul 06, 2025
Chapter 17 Apr 09, 2025

Yannatchaukurai Aishiteru (Yaoi)

The following content is intended for mature audiences and may contain sexual themes, gore, violence and/or strong language. Discretion is advised. Kyouji is a Buddhist exorcist, and although he can't see ghosts, his best friend and lover, Yu, can! Maybe they'd go all the way if Yu's incredible supernatural strength could be held in check. How can a steamy, sexy relationship survive such obstacles?

3.85
562
Chapter 2 Dec 22, 2011
Chapter 1 Dec 22, 2011

Yasha

From ShoujoMagic: Arisue Sei lived as happily as any normal kid would, just him and his mother -- a particularly private woman -- on an outlying island of Okinawa. There were also his friends Toichi and Moichi. The only unusual things about Sei were his sharp instincts and high intelligence. But everything changed when his mother was killed and he was kidnapped by the people of Neo Genesis. Now, six years after the kidnapping, Arisue Sei has returned to Japan with the title of "Doctor" at only the age of 18, and he's not the Sei that his friends remember. There are bodyguards with him who protect him from others who wish to possess his superb intellect. He says he's come back to assist with the research at Rakuhoku University, where Moichi now works, but here is where the door to Sei's secrets just begins to open... In 2002 Yasha series received the 47th annual Shogakukan Manga Award for shoujo.

4.65
12.4K
Chapter 67 Dec 05, 2017
Chapter 66 Nov 27, 2017

Yin He Bi Duan Manhua

not found...

4.15
1.7K
Chapter 11 Aug 04, 2015
Chapter 10 Feb 20, 2015

Yogashiten Galaxy

not found...

3.75
424
Chapter 1 Aug 02, 2014

Yomeiro Choice

The following content is intended for mature audiences and may contain sexual themes, gore, violence and/or strong language. Discretion is advised. Saku had a normal life, living with his cousin Kuran and being tormented daily by his childhood friend, Karin. That is, until the day a girl named Kiiro showed up out of nowhere claiming to be Karin's and Saku's daughter from the future. Convinced she will disappear from existence unless Saku and Karin get married, she makes life a lot more complicated for everyone. Things only get crazier when Hiiro, a girl claiming to be Kuran's and Saku's daughter from a different timeline in the future, appears with the goal of getting Saku together with his cousin Kuran. Saku is suddenly faced with a dilemma: whom does he choose as his wife, and which daughter does he save from disappearing into nothing?

3.9
5.2K
Chapter 41 Jan 14, 2011
Chapter 40 Jan 14, 2011

Youkai Shoujo - Monsuga

The following content is intended for mature audiences and may contain sexual themes, gore, violence and/or strong language. Discretion is advised. Part time worker at a general store in Akiba, Yatsuki encounters a beautiful girl named Roka when she lands on his face in the middle of a park. Much to his surprise, he's able to become friends with this beautiful girl... but she hides a terrible secret that Yatsuki will find out soon enough. With other beautiful girls that surround him, including his little sister Nanao and the maid cafe girl Moru, Yatsuki will have to fight to protect the supernatural girls around him.

4.5
22.1K
Chapter 148 Oct 19, 2021
Chapter 147 Jan 28, 2022

Yukikaze

A coda to the anime and novel of the same name, this six-chapter manga gives us a deeper glimpse into the backstories of Rei Fukai, James Bukhar, Tomahawk John, and other members of the F.A.F.NOTE: the magazine this manga appeared in has been considered a women's publication.

4
324
Chapter 1 Dec 22, 2011

Yume No Tsuzuki

Ailey, the selfish daughter of a multibillionaire, "buys" her favorite rockstar in an intergalatical society and essentially forbids him from leaving her private planet, no matter how much he trys to leave. But as time goes on, the rockstar Marty, continu

3
396
Chapter 1 Jan 14, 2011

Yuusen Shoujo ~Plug-in Girl~

Six years ago, Tsukihiko was caught in an assassination attempt on a little girl, Sami, when he attempted to be her shield. This incident nearly killed him and the girl together, but the little girl was the daughter of an extremely powerful family. With its vast amount of resources, the family was able to keep both Tsukihiko and Sami alive by recreating both of their bodies with cyborg technology. This has forced Sami to permanently rely on wired connection to her life sustaining computer. On the other hand, Tsukihiko has become a cyborg "Knight," sworn to protect Sami from harm's way.

4.4
2.9K
Chapter 16 Oct 15, 2014
Chapter 15 Oct 15, 2014

Yuusha-Ou GaoGaiGar FINAL the COMIC

The official side-story manga accompanying the Yuusha-ou GaoGaiGar anime.The first story, Wings of Light and Darkness, takes place between episodes 43 and 44 of the GaoGaiGar TV anime. In this three-chapter story, a bit of the backstory of Soldato J and Arma is revealed as they come into contact - and conflict! - with one of J's old comrades: the Black Soldato, J-013!The second story, Evoluder Guy, takes place between the end of the GaoGaiGar TV series and the start of the GaoGaiGar FINAL OAV series. In its five chapters, witness the theft of the new Super Mechanoid - the Fighting King of Braves, GaoFighGar - by the underground global criminal organization, BioNet!

4.75
2.7K
Chapter 8 May 18, 2013
Chapter 7 May 18, 2013

Zeb-noid

A bloody war that spans millenniums. Two soldiers set out to kill each other. An encounter that could change their two species’ fate forever.

2.6
385
Chapter 1 Jan 14, 2011

Zero (yamazaki Takako)

In the year 2000, a Chinese nuclear experiment went wrong mid-transit, resulting in Japan falling into ruin. Those that survived were housed in Japanese based American military facilities to escape from the deadly radiation and learned to live following r

4
861
Chapter 4 Jan 14, 2011
Chapter 3 Jan 14, 2011

Zetman

It follows the life of a homeless boy living with his "grandpa". The story starts to kick off when they encounter a man trying to commit suicide mumbling something along the lines of "before it is too late". Of course from then on the action begins and the dark plot begins to unfold with each volume.Â

4.4
35.6K
Chapter 226 Jun 04, 2017
Chapter 225 Aug 02, 2016

Zettai Renai Program

A guy is 100% perfect. But...he’s an android ?!!

4.3
1.7K
Chapter 8 Oct 04, 2015
Chapter 7 Sep 15, 2015

Zoushoku Shoujo Plana-chan!

Think Yotsuba but with a Planarian*/Human Mutant 4 year old girl instead of one with green hair.(*a planarian is a kind of non-parasitic flatworm organism)

4.2
4.0K
Chapter 21 Jan 14, 2011
Chapter 20 Jan 14, 2011

birdy the mighty (I)

The following content is intended for mature audiences and may contain sexual themes, gore, violence and/or strong language. Discretion is advised. Tsutomu Senkawa is an average high school kid who is busy studying for his senior entrance exams. One day, Tsutomu stumbles into a man who is on the run from space Federation officer Birdy Cephon Altera. The man throws Tsutomu at Birdy, who kills him only to realize her blunder right after. In order to save his life, Birdy and Tsutomu's body merge into one, and they must swithc back and forth between being a high school student and being a Federation officer on the hunt for interplanetary criminals.

4.25
1.1K
Chapter 5 Sep 13, 2019
Chapter 4 Sep 01, 2018

dragon and weed

Hyun Lee, a debt-ridden 20 year-old high school drop-out, puts his top-level avatar from 'The Continent of Magick', once the most popular online RPG game in Korea, up for auction. Once the news spreads nationwide, a fierce competition to win Hyun's avatar breaks out, raising the auction price to $3.9 billion Won.However, when loan sharks show up at the hospital where his ailing grandmother is to collect his debts, he's then left with only 90,000... 50,000 of which goes to pay for a small house for his grandmother and sister to live in. Determined to send his little sister, Hayan, to college and make the loan sharks pay, he joins an online RPG game named 'Royal Road' to prove that history repeats itself. Why not claim the top once again?

1.95
668
Chapter 2 Nov 12, 2012
Chapter 1 Nov 12, 2012

japan

The following content is intended for mature audiences and may contain sexual themes, gore, violence and/or strong language. Discretion is advised. not found...

3.4
240
Chapter 1 Feb 11, 2011