Umakai Shintaro, a Russian diplomat originally from Japan, defects and goes to Sapporo to teach at a girls academy. However, that girls academy is not typical—it is on board the Amanohara, and the five girls Shintaro teaches are known as the Lime Unit—girls with the ability to summon powerful beings to fight for them. Shintaro eventually becomes their teacher and general in battle, and so the six embark on a weird and excessively erotic journey, as Shintaro helps the girls overcome their weaknesses, become stronger for the final stand at Lushun, and also understand the motives of the "Russian Spiritual Corps" that assist the opponent, which, unfortunately, has one member whom Shintaro knew well...
The Girl's School on a Battleship
Amanohara Takeoff
As a Soldier, As a Teacher
Great Detective Sarasa!?
Another Homeland
The Peaceful Day Off
A Thousnad Paper Cranes
I'm Not Afraid of Bad Luck!
Little Step
A Closed Off Heart
Big Brother's Day
The Last Lesson
Victory Bell, Echo Towards the Future
After-school Hanako-kun
Liar, Liar
Rumble Garanndoll
Love After World Domination
Queen's Blade: Vanquished Queens
Smile of the Arsnotoria the Animation
The Masterful Cat Is Depressed Again Today
Tenkai Knights
A Certain Scientific Accelerator
Deltora Quest
X
The Shiunji Family Children
Lockdown Zone: Level X
The Red Ranger Becomes an Adventurer in Another World
Kakuchō Shōjo-Kei Trinary
Cooking with Valkyries
SAINT SEIYA: Knights of the Zodiac
KENGAN ASHURA
Fate/Grand Order Absolute Demonic Front: Babylonia
Mutant Turtles: Superman Legend