In a parallel 21st century Japan, an enemy with incredibly advanced technology attacks mainland Japan from Hokkaido, shattering the Japanese Defense Forces and their American allies. Japanese military scientists use what enemy technology their troops can capture to create their own mecha to fight off the enemy's advance.

But what does this have to do with a boy named Yuu, a mechanical genius with motion sickness, and his separation from his younger sister for over 7 years? Why does she suddenly appear after all that time, dressed as a miko and shadowed by a fox, at the temple where Yuu lives with his uncle? Is she who she says she is?

She reappears in his life just as military secrets and his own secret burden of a psychic power shake up his socially estranged life. And then the war advances...

Living with an alien was something Misuzu never imagined would happen, but when it does, you just have to roll with the punches. Naoko is from another world, but you wouldn’t think that since she looks just like another school girl. But her weird but pleasant personality and the advanced technology she has brought makes living with her anything but normal. Misuzu and her family make her feel part of the family and try to go about their daily lives.

UFO Robot Grendizer is the third entry in the Mazinger Trilogy by Go Nagai, following Mazinger Z and Great Mazinger. This particular incarnation was illustrated by Gosaku Ota and published in Boken Oh, Otomodachi from October 1975 – March 1977. It follows the adventures of Duke Fleed, the sole survivor of an attack on the Vegan Empire, who defends his second home, the Earth, from the Vegan attack, together with the giant robot Grendizer.

Fourteen-year-old Kouichi Hayase’s life has always been a mediocre one, if not dismal. However, those days of being bullied by classmates and escaping to a fantasy of being a hero are put to an end when a certain “accident” bestows on him a girl and a gigantic humanoid robot called “LINEBARREL”. The extraordinary power that Kouichi obtains puts him and everything around him on a sudden rollercoaster ride of battles, intrigues and friendship! During the course of his adventure, the boy starts to learn what life has to offer; he meets new friends, bids farewell to the old ones, but most of all he now has considerable responsibilities and is forced to confront the world around him.

From MangaHelpers:
The world is in a war against an alien race called "Mimics," who have taken over most of the world with a mission to eliminate the human race. Keiji Kiriya is a new recruit in the United Defense Force, which is battling against these "Mimics." On his first day of deployment, Keiji and his unit encounter "Mimics" and are all killed... Or was it all a dream? For some inexplicable reason, after every time he dies, he is resurrected and returned back to the day before the battle. Why does this happen to Keiji and how can he escape from this never ending cycle?

Note: Nominated for the Eisner award for the "Best U.S. Edition of International Material - Asia" in 2015.

After a generation of warfare, the Gundam boys finally brought peace between Earth and the colonies when they helped defeat the Oz and White Fang armies. Now, out of the rubble, the surviving soldiers are re-emerging and clustering together into new factions. Heero Yuy has become a vigilante pacifist, tracking down weapons stashes and destroying them, while Relena, former Queen of the Earth Sphere, is now trying to maintain the peace politically. But an unmanned weapons factory has been discovered somewhere near Mars, and now the Gundam boys are going to have to dust off their mechs for one more battle if peace is to stand a chance of lasting. Battlefield of Pacifists is one of the possible events that bridge the gap between the anime series and the OVA, Endless Waltz. Other manga that also present such possibilities are Blind Target and Ground Zero. Here are other titles that are related to this one: Shin Kidou Senki Gundam W (is the Main Story) Shin Kidou Senki Gundam W: Endless Waltz (is also the Main Story) Shin Kidou Senki Gundam W: Blind Target (is the Alternate Story) Shin Kidou Senki Gundam W: Ground Zero (is also the Alternate Story) ~ ming

Her grandfather has passed on, leaving a mecha in his likeness to help her. Has he left other gifts and will she ever truly understand?

Fool for the City was the one of the early works of Nagano. It first appeared in NewType Magazine as a monthly feature later to be compiled into one volume in 1987. The main premise revolves around F.U. Rogner putting the rock band, Super Nova together.

When an unknown Arm Slave surfaces somewhere in the Taiwan Strait near mainland China, MITHRIL orders Melissa Mao and her team to go into a divided Hong Kong to investigate the perpetrator of the unknown Arm Slave. As the team continues to check into the reports of the unknown Arm Slave, the culprit is believed to be a potential SRT recruit back from Sousuke's training days in Belize when he was not recruited by MITHRIL.

Naruyuki Touya, young student, arrives at Amagiri Gakuen, his new highschool. He finds himself on the quay of the station faced to a robot out of control and is attacked by a girl and then a classmate.
Who are they? How come the girl knows his father?
And what is the connection with him and this highschool?

It is the year 4088. It has been over one thousand years since the Crisis of Systems (Lost Property), which resulted in the destruction of four planetary systems, leaving only a single inhabitable planet, Zion. Mankind is forced to live in space colonies, since that one planet is constantly being invaded by alien life forms that have come to be known as Victim.

To stop the aliens and to allow people to land on Zion, mankind has developed the astronomical humanoid weapons, Ingrids, also known as Goddesses. G.O.A. (Goddess Operation Academy) is a school dedicated to the training of young men to pilot these Ingrids...

Consecutive wars of the 21st century have taken their toll on the world and humanity.A mercenary organization by the name of SHRIKE has mysteriously gotten hold of a device that produces infinite amounts of clean energy with seemingly no fuel needed.Along with it a new type of bio-armor never before seen in action.This new weapon is known as secto-armor and has become the terror of the battlefield. Using its endless power source and the secto-armor technology SHRIKE remains dominant over all military powers and refuses to give the device to the countries of the world less they apply it to more weaponry and annihilate what remains of the already torn earth. SHRIKE and the secto-armors now have to fend off wave after wave of attack from countries greedily wanting the device that could end the world.

12.000 years after the events of Sousei no Aquarion, mankind is threatened by a new enemy from other dimension labeled "Abductors", who just like the Shadow Angels, invade the human cities to kidnap its inhabitants. To defend humanity from this invasion, the Neo-DEAVA organization establish two teams, one composed of only males and other of only females, each one piloting their own giant machines called "Aquaria". To protect his new friend Mikono, teenager Amata Sora decided to use the powers he has kept secret his entire life and by combining Vectors with male and female pilots into one single robot, the legendary giant Aquarion is reborn once more.

A short story based on the long running video game series of the same name.

During summer vacation a group of fifteen children discover a mysterious man living in a cave surrounded by high tech gadgets, the man claims to be a game developer, creating a video game with a giant robot defending Earth from fifteen alien invaders. He asked the children to test the game for him and they agreed.

The plot revolves around an intranet-based online game (D.P. = Danger Planet) which is played using a V.P. (Virtual Puppet). VP is literally an avatar which a person uses in the game. However, unlike avatars (characters) from current online games, a VP is allowed to be modified (modded) by a person if he or she has sufficient programming skills.

Kilio Nimra, a normal high schooler who likes games. He and his friend Kurata always plays Danger Planet after school, one day they meet a very tough opponent.

From Tokyopop:
The discovery of an alien organic vessel submerged in the ocean reveals a plot to unleash planetary destruction... a collective of evil scientists called the Reclaimers works to hasten mankind's extinction. As one of Earth's defenders, Hime Utsumiya fights on a team of mecha called Brain Powereds to combat them. Unfortunately, the Reclaimers also have these mecha, and mankind's fate hangs in the balance.

Remake of Macross.

The Empire of Brittania has invaded Japan using giant robot weapons called Knightmare Frames. Japan is now referred to as Area 11, and its people the 11s. A Brittanian who was living in Japan at the time, Lelouch, vowed to his Japanese friend Suzaku that he'd destroy Brittania. Years later, Lelouch is in high school, but regularly skips out of school to go play chess and gamble on himself. One day, he stumbles on terrorists 11s who've stolen a military secret and is caught by a member of the Brittanian task force sent after them, who is Suzaku. As the rest of the squad arrives, Suzaku is shot for disobeying orders, while the military secret, a young girl, gives Lelouch the power to make anyone obey any order. He takes command of the terrorists and leads them to crush the approaching Brittanian force. However, Suzaku is secretly made the pilot of Brittania's brand new test model Knightmare, Lancelot. Lelouch becomes the masked king Zero to lead the rebellion to defeat Brittania. This series follows Suzaku's side of the story, while Lelouch of the Rebellion follow's Lelouch's.

An alternate Code Geass story in which Lelouch's fate is unknown after his meeting with C.C., whether he be dead or alive. Nunnally makes a Geass contract and gains the power to read the lines of the future. She also obtains a new body and takes up piloting an unusual Knightmare Frame.