If Kagerou ever has sex with someone, they will die.

Blessed with Suck: A few of the ninjas in Basilisk have powers that adversely affect their lives.

He fits much more in the anime's backstory, where he's in his late teens/very early 20's.

Hyouma, though he's more of a biseinen since he's older than both of them.

The latter is even described as 'very handsome' in the original novel's character sheet. And even before this, the Kougas knew that doing something bad to Okoi was a Bad Idea.

Big Brother Instinct: When Okoi was tortured and killed by the Iga, her older brother Saemon threw himself fully and furiously into the Iga/Kouga feud.

Beware the Nice Ones: Lots, but most notably Udono Jousuke and Saemon Kisaragi.

Insisting that it would be a shame if someone like her were to ever smell of blood. In the flashback episode, Yashamaru actually discourages her from EVER taking part in a battle. But the show never lets us see them actually fighting as a team.

Battle Couple: Hotarubi and Yashamaru must have been one.

Though, given the series, that isn't saying much.

Attempted Rape: Lots of it, they are usually an good indicator that someone (either victim or perpetrator) is about to die.

Arachnid Appearance and Attire: Shogen Kazamachi has a decidedly spider-like appearance, as he has elongated limbs, a tongue that spits out webbing and six markings on his forehead that makes it look as though he has additional eyes.

From the gentlest to the meanest characters, almost all of them have their days numbered.

A Day in the Limelight: One episode focuses on the goings-on with the Shogun and the nobility, showing that things are getting pretty bad behind the scenes as well, to the point that both noble houses are actually staging regular assassination attempts on the opposing house's heir.

Adaptation Title Change: Basilisk is based on the 1958 novel The Kouga Ninja Scrolls.

The anime expands considerably on it as well.

The same goes for the novel the manga/anime is based on.

The anime in itself follows the manga rather closely but gives more room for Character Development, also expanding the backstories of several characters (particularly Gyoubu).Or girls participating in a deadly contest against their loved ones.Actor Allusion: It's not the first time Nana Mizuki voices a ninja.Torn between their love for each other and duty to their clans, Gennosuke and Oboro must ultimately decide the fate of their clans.

The prize for winning is the favor of the Tokugawa shogunate for a thousand years. Two scrolls with the names of the fighters are given and are to be marked in blood upon the given fighter's death. To resolve this dispute, both the Kouga and Iga are ordered to send their 10 best warriors to fight in a bloody battle royale, with each clan representing one of the potential shogunate heirs. Ieyasu's two grandsons have both claimed to be the next heir to the shogunate. But their hopes are dashed when flames of rivalry between their clans are reignited, and they are dragged into another war. Through marriage, both heirs aim to bring peace to the clans. Years later, Gennosuke Kouga, heir of the Kouga clan, and Oboro Iga, heir of the Iga clan, have fallen in love. But when a ceasefire is ordered by the powerful warlord Ieyasu Tokugawa, the two clans are forced to put down their arms. Quote: For centuries, the Iga and Kouga ninja clans have engaged in a bitter war.

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