Kunoichi no Ichi!

During a school excursion to the shinobi-themed amusement park Ninjatown, an ordinary young man named Ichi Kuno accidentally triggers a mystical ninja trap. The activation hurls him through time, stranding him in the historical Age of the Ninja. With no immediate way home, his only hope lies in recovering a legendary scroll capable of returning him to the future. To secure it, he is forced into a desperate masquerade: disguising himself as a girl to infiltrate Kurenai Academy, an elite training institution exclusively for kunoichi. The challenge proves far more daunting than anticipated. Ichi finds himself surrounded by highly skilled female warriors whose mastery of stealth and infiltration vastly exceeds anything he could ever hope to achieve. To survive in this perilous environment, he must rely on his own unconventional tricks and an extraordinary amount of luck. The stakes are absolute, as every beautiful kunoichi at the academy would execute him without hesitation if his true identity were ever exposed. Navigating a daily existence among lethal assassins while maintaining his fragile disguise becomes a constant test of nerve, where a single misstep means certain death.