Kagemori Mamoru is a dowdy boy whose hair is disheveled and who wears thick glasses, but he is actually the son of a ninja family. They have protected their neighbors, the Konnyaku family, secretly for 400 years. Mamoru has personally protected their daughter, Konnyaku Yuuna, since they were in kindergarten. When Yuuna is in trouble, Mamoru puts on ninja suit and turns into a competent ninja to help her.

Rushuna is a blonde and very beautiful Senshi (gun expert) that travels through the world with one purpose. Which is to make the world a peaceful place by, instead of fighting with weapons, taking away the people's will to fight by giving them a smile. Although she doesn't want to fight, she is forced to, and shows amazing gun skills. In this journey she meets Yajirou, a mercenary that uses a sword to fight and joins her on her journey. (Source: ANN)

Qiang Niang mainly tells of the protagonist Carrie, who has lost her combat memories, searching for herself and the story of her final "Awakening". In the years between 2025 to 2030, a world war involving the entire world has resulted in the demise of half the world's population, and humanity has already lost control of the direction the war shall go in. In order to seize ultimate victory, war has gradually been turned into a battle without people, similar to a game. War has already become about Satellite lasers, Bomb drones, Intelligent AI, a battlefield between unmanned gun turrets and tanks... Then, there are also a group of young maidens who uses outdated firearms to engage in battle —— the Gun Girls.

In a fictional school, "Tender Tank" Rareko is constantly opening absurd yet strangely enthusiastic debates, this way creating a lively classroom life. Bringing up tremendous themes, she and her classmates exchange words like sword-strokes, and here and there even a profound remark is slipped in. A fun and informative debate comedy, packed into only five minutes each time. (Source: AniDB)