One day while Shirou is delivering a secret device to his colleague, he meets Amane Mao, a super-strong girl capable of lifting cars. This device, the VITA system, is a new weapon theoretically capable of defeating ERRORs: a breed of enormous, cybernetic mutants that necessitated the use of weapons of mass destruction on Old Tokyo fourteen years ago.
Suddenly, one such ERROR appears before the two and goes on a rampage. Shortly after a failed argument to convince his colleague to approve use of the VITA system simply to save civilians, his colleague is devoured by the ERROR. Faced with death, Shirou has no choice but to accede to Mao's request to activate the super-weapon and destroy the ERROR.
...and thus Shirou's eventful days as the male master of the VITA system at St. Liddel's Girls' Academy are about to begin...
VITA Sexualis has finished publishing and it has 35 Chapters. It is also Known as: VITAセクスアリス, VITA Sex Alice
Genres: Science Fiction , Fantasy , School Life , Mecha , Harem , Romance , Action , Ecchi
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Top 5 Manga Like VITA Sexualis [2026 List]
5. IS: Infinite Stratos
In a world of technological progress, females are the only ones who can pilot the most advanced military unit in history—the Infinite Stratos (IS). With this power, women have seized complete control of all political, social, and economic ventures; leaving men to the fringes of society, made to tend to the whims of their now, female overlords. That is until Orimura Ichika, the sole male found to have IS piloting ability, is thrust into the spotlight, and enrolled at the prestigious IS Academy. Stuck in the middle of a female-dominated population, Ichika sets out to prove men still have a place in this world. Little did he know, he's just the thing these women have been looking for.
Source: J-Novel Club
Infinite Stratos is currently publishing and has Chapters. It is also Known as: IS〈インフィニット・ストラトス〉, IS: Infinite Stratos
4. Hundred
"Hundred"—that is the only weapon that can oppose the mysterious life form "Savage" from visiting the earth.
The protagonist, Kirasagi Hayato, aims to become a Martial Arts Master using this Hundred. He managed to get into the battleship university Little Garden.
However—
"I wanted to see you, Hayato!!!"
"H-How do you know my name?"
Around the roommate, Emil Crossford, who somehow knows him well (?), Hayato gets an uneasy feeling.
What's more, just after the entrance ceremony, he gets asked for a duel by the campus' strongest martial arts master "Queen" Claire Harvey...!?
The ultimate academy battle begins here!
Hundred has finished publishing and it has 13 Chapters. It is also Known as: ハンドレッド [hʌˈndrəd], Hundred
3. Code Geass: Nightmare of Nunnally
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.
Code Geass: Nightmare of Nunnally has finished publishing and it has 26 Chapters. It is also Known as: コードギアス ナイトメア・オブ・ナナリー, Code Geass: Knightmare of Nunnally
2. Blame Gakuen! And So On
Collection of Blame-related short stories.
1. ZEB-NOID
2. Blame Gakuen!
3. Blame Gakuen! Kyoto Nara Aiai-gasa (Kyoto and Nara Under One Umbrella)
4. Blame Gakuen! Sakura Saku Tou no Shita de (Under the Tower of Blooming Sakura)
5. Kozutsumi (Parcel / Nihei: Abba)
6. Netsphere Engineer
7. Pump
8. BLAME!² - Dai 8-keishitai Pcell no Toshi Kouzoutai Dasshitsuki
9. Numa no Kami (God of marsh)
10. Senshi Kouchuu Suzumega (Winged Armor Suzumega / The Armored Battle Insects: Sphingidae)
BLAME! Academy and So On has finished publishing and it has 10 Chapters. It is also Known as: ブラム学園！アンドソーオン 弐瓶勉作品集, Blame Academy!, Nihei: Abba, Zeb-Noid, Netsphere Engineer, Blame! Net Sphere Engineer, Pump, Blame!², Blame 2, Winged Armor Suzumega
1. 12 Beast
Note: The manga was cancelled after being put on hiatus, with the author stating he had lost the motivation to continue it, with their failing health being the main concern.
Join ninja apprentice Eita Touga as he embarks on an epic adventure searching for his missing brother Kouki and save the Autana (Humanoid Beast) race of "Live-Earth" from the mysterious Gigas seeking to exterminate them.
12 Beast has finished publishing and it has 36 Chapters. It is also Known as: 12BEAST, Twelve Beast
