It sells you a Russo-Japanese war epic and then spends its time on a homeroom. That is the trick: the Amanohara is a demon-powered flying warship pointed at Port Arthur, and the actual show is Umakai Shintaro, a Russia-based diplomat who defects home, trying to teach five girls who happen to be the weapon. The plot execution is genuinely bad and the storytelling is cheese all the way down, and anyone who tells you otherwise is lying to protect it. What survives is the cast. By the back half you know their backstories, you like the way they talk over each other, and the comedy scenes land because the character work quietly did its job. This is the 2003 blueprint Strike Witches got famous for later. Watch it for the girls you did not expect to care about, not the war.
It's 1904, and Japan's military is desperate. A supernatural warship called the Amanohara, powered by demon magic, serves as both a flying fortress and an unlikely school. Five girls with the ability to summon otherworldly fighters make up the Raimu Unit, the nation's secret weapon against Russian forces during an escalating conflict. Their new instructor is Shintaro, a former Russian diplomat with mysterious ties to Japan who agrees to command them in battle while teaching them academics between combat operations. What unfolds is equal parts absurd comedy and frantic action. Shintaro must transform these untrained girls into effective soldiers while navigating the chaos of classroom life aboard a demon-powered ship. Romance simmers beneath the surface, ridiculous situations constantly derail serious moments, and the line between supernatural warfare and teenage melodrama blurs constantly. The tone embraces its own ridiculousness: this is a show that knows exactly how weird it is and leans into the eccentricity. Viewers seeking a brisk, silly adventure with mechanical monsters and romantic subplot chaos will find their stride here.