Ordinary High-School Student Hideyoshi (real name: Yoshino Hidenote East Asian order: Hide Yoshino) can't do anything right. She's a trouble magnet who is in danger of failing, and with a test on the Sengoku period coming up, her future isn't looking bright. One night, she stops by a shrine and finds herself, through a series of accidents, being transported back to the actual Sengoku period. Only most of the major historical figures are now women, and Hideyoshi has no idea what to do or how to get home, so all she can do is help Nobunaga obtain the pieces of the Crimson Armor so she can take over Japan.Originally a pachinko game, Sengoku Otome was adapted into an anime, Sengoku Otome ~Momo-iro Paradox~ in the spring of 2011.
Action Girl: Just about the entire cast. Even Hideyoshi has her moments.
Alternate Universe: The Sengoku era Hideoyoshi landed in is not Earth's. For one, men don't exist. Literally (Except Shiro but he is an animal so its more of a world without human men).
The clincher is the outcome of the Battle of Okehazama, which in reality would be about a small force overcoming the enemy's greater numbers with superior strategy, ended in Yoshimoto Imagawa's death and signaled the beginning of Nobunaga's conquest. Here, it was a recreation tournament, with kite fighting done as a tie-breaker and ended with Yoshimoto just giving Nobunaga the Crimson Armor's left leg piece. This is lampshaded by Hideyoshi and Shiro.
The Incident at Honnou-ji still happens but in actual history, happens after years of suffering repeated insults from Nobunaga, but was ultimately tipped when Nobunaga's actions resulted in the death of Akechi Mitsuhide's mother. This caused him to divert from reinforcing Toyotomi Hideyoshi to attacking Honnou-ji, and the rest is history. In the show, Mitsuhide was enduring an Unrequited Love for Nobunaga and jealous of the attention she constantly gave Hideyoshi. Not only that, but Date-sensei pushed her into actually going along with the whole incident as a ploy to steal the Crimson Armor. Nobunaga doesn't die (in fact, no one does) and she helps Mitsuhide resolve the issue, but they later find that the Crimson Armor is gone.
And You Were There: Hideyoshi's friends in the modern day resemble the people she'll meet in the past to an uncanny degree. Specifically, Mitsuhide looks like her friend Akerin, and Ieyasu resembles Tokunyan. Masamune is actually her teacher Date-sensei, so that one is quite justified.
Animal Motifs: The Monkey for Hideyoshi and in Episode 2 Nobunaga is going to give Monkey as Hideyoshi's nickname but Hideyoshi hates it and prefers to have Hideyoshi as her nickname.
Big Bad Ensemble: For the most part, there wasn't one, until Ieyasu pulls a Face-Heel Turn and fights the rest of the cast. Date-sensei tried to be this for about half of episode 13, but never really picked up, especially after Nobunaga destroys The Helmet of The Crimson Armor.
Girls Are Really Scared Of Horror Stories: In episode 5, when the cast was trapped in a forest and the only way out was to tell the circle of ghosts a hundred horror stories, Mitsuhide was shown to freak out at every story so easily, she couldn't finish her own and the party had to tie and gag her twice.
I Ate What?: Hideyoshi realizes a little too late what Sengoku-era medicine consists of. Primarily horse manure, with a few other things mixed in.
I Know Mortal Kombat: Hideyoshi sucked at nearly everything Mitsuhide challenged her at, except for the staff fighting, where she emulated a Show Within a Show Kung Fat. She still lost, but she impressed Nobunaga and showed that she wasn't completely unskilled.
In the Name of the Moon: Motonari, Motochika and Sourin introduce themselves with an elaborate roll call that, as soon as it finishes, causes them to be blown up by Nobunaga.
Intimate Healing: Happens in episode 8 when Nobunaga gives medicine to an unconscious Hideyoshi.
Not What It Looks Like: Nobunaga giving Hideyoshi some medicine looks like a kiss. It turns out Nobunaga didn't even know what a kiss was.
More like Nobunaga didn't know what the term "kiss" since it's an English word commonly used by people in Hideyoshi's time. As soon as Hideyoshi explains what it is, Nobunaga promptly blushes and denies doing such a thing.
Obfuscating Stupidity: Ieyasu is engaged in a plan to let Nobunaga complete the Crimson Armor and then take it for herself when that is done. Hideyoshi notices the difference in personality when she comes back from the woods behind the group.
Oblivious to Love: Nobunaga really does not see that Mitsuhide admires her to the point where she wants to go all the way with everything the practice of shudo entails.
Talking Animal: Shiro, but only to Hideyoshi. He shuts up whenever there's someone else around. Until episode 11, where he breaks his silence when he tries to stop Ieyasu.
The Talk: Unusual in that both parties already know the mechanics and outcome of the deed, but Hideyoshi was asking Shiro how it worked because there are no men around and she was wondering how the people in that world reproduce. He explains this with three Delivery Stork answers (that babies were delivered by storks, were found in cabbage patches and found inside bamboo shoots), which Hideyoshi actually takes for truth, not because of immediate stupidity, but because she has no other idea how else it could work in a world without men.
Talking Is a Free Action: Beatifully subverterd in epsidoe 9, When Nobunaga nukes the Saigoku three as they make thier over the top entrance.