If you're looking for manga similar to True Tenchi Muyo! (Light Novel), you might like these titles.
Sixteen-year-old Mikako Nagamine enlists as a pilot to fight in the interstellar war against a force of alien invaders, leaving behind her one true love. Mikako’s only connection to Noboru Terao, who’s living the life of an ordinary high school student, is through cell-phone text messages. As Mikoko travels farther away, it starts to take longer and longer for Noboru to receive her messages, until finally one arrives eight years and seven months after she sent it.The war rages on, and years pass, but out in space, Mikako barely ages. When at last the fighting ends, she is left stranded on the spacecraft carrier. A rescue mission is launched to help – including Noboru, who’s now a lot older. When they meet again, they’ll discover whether their young love survived.
In the year 2197, mankind has developed a method of traveling light-years in a matter of seconds, by opening a passage to a parallel universe where matter can travel infinitely fast. These openings have given an alien force, called 'Ghouls', the means to enter our universe. After a brutal attack, a group of new pilots are called in to help with the fight. But can they survive the Captain's brutal training long enough to defeat the Ghouls and protect the station?
Nagamine is a young high school student who lives a fairly typical teenage life: hanging out with friends, attending class, and falling in love with a wonderful boy. But when she enlists in the galactic army, who is desperate for candidates to fight an alien war, she finds herself drifting farther away from her first love, Noboru. In the depths of space, where a simple email takes eight years to be delivered, will their love truly flourish, or simply fade away?
Nagamine is a young high school student who lives a fairly typical teenage life: hanging out with friends, attending class, and falling in love with a wonderful boy. But when she enlists in the galactic army, who is desperate for candidates to fight an alien war, she finds herself drifting farther away from her first love, Noboru. In the depths of space, where a simple email takes eight years to be delivered, will their love truly flourish, or simply fade away?
Wonder 3 takes place in an alternate Earth in the year 196X and the world is overrun with war and violence. The Galactic Federation consisting of all the advanced species of the universe convene to decide the future of Earth, but due to a lack of information they decide to send an elite team, Wonder 3, to observe human species for one year and determine whether or not humans are worthy of saving. Upon landing on Earth, the three members of Wonder 3 - Bokko, Nokko, and Pukko - disguise themselves as animals and come across the two Hoshi brothers who defend humanity in their own way. With a time limit of one year, what can Wonder 3 learn from the Hoshi brothers about life on Earth?
When Noriko, Amane and their friends left for a week-long summer camp experience in the countryside, they had no idea that they were about to embark on a galactic adventure! After helping a wounded, dog-like alien, the creature offers to take them to a spaceport on the moon where fantastical beings, flashy sights and new friends await them. Together, the gang will travel between worlds, dodge nefarious poachers and even encounter the most famous television show in the galaxy, as they embark on the best summer vacation of their lives!
It is the year 2045. To escape a dying Earth, mankind conducts a mass exodus to Mars. But an enemy surpassing human imagination lies in wait for them in space.
Iczer-One is awakened and escapes the Cthulhu spaceship just before it is taken over by Big Gold. Iczer-One crashes down on the planet Ishua with no memories and no knowledge about herself or her past. There, she is forced to fight against Magenta, one of the Cthulhu's commanders who is in charge of the Cthulhu's invasion force on this world.
Beginning four years after the one year war, 0083 starts with the arrival of two new Gundam units to be used for gravity testing. Things take a turn for the worse when members of Zeon steal Unit 2 and the nuclear warhead it that it has been armed with. Young test pilot-in-training Kou Uraki, piloting Gundam Unit 1, must now capture the stolen Gundam before it can be used to fulfill Zeon's mysterious "Operation Stardust".