Hanzo Academy: a secret high school established by the Japanese government to educate the newest generation of ninja girls. The spunky second year student, Asuka, along with her friends, the perverted Katsuragi, the childish Hibari, the mature Ikaruga and the deadly Yagyu, must each undergo rigorous training in their daily school life. But do they have what it takes to become full-fledged ninja? Only their bodacious skills and prodigious talents can keep them alive while they struggle against ninja rivals who seek to destroy them at every turn. (Source: Seven Seas Entertainment)

Spin off of main series Senran Kagura - Shoujotachi no Shinei, it portrays the main storyline from the point of view of the snake girls, and follow their misadventures, victories, and defeats when confronting Hanzo ninja, being released in Comic Rex. Different point of view from main story line, with main actors being the snake girls with focus on their academy.

The Hanzo Academy is not just a regular school. It holds a top secret class for ninja training reserved just for the elite. Only two girls made the cut this year, Ikaruga, a quiet but gifted brunette, and Katsuragi, a passionate and skilled blonde. Their personalities could not be more polar opposite and sparks fly even on the first day of class. Ikaruga, being a little bit ahead of the curve, outscores Katsuragi on every assignment. With tensions running high, how will these two ninja students work together when the time comes?

At Snake Girls' Academy, Haruka is vaguely thinking about graduation. One day, hoping to keep a record of cherished memories, Haruka begins to make a secret ninja tool in the laboratory. That is a "hanamenran" (camera). Using the tool, when you take a picture of a person's smile, flowers bloom around the subject according to the smile. Sometimes, these instances of honest, natural interactions reveal new sides... (Source: Kadokawa, translated)