These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Complete Monster: Tenzen Yakushiji, the Number Two of the Iga Clan in the Ninja War series Basilisk absolutely leaps heads and shoulders over any of his fellow ninja for sadism, cruelty, greed and monstrosity. Secretly a centuries old former Koga himself, Tenzen has nothing but loathing for the Koga and little use for his own Clan. When Princess Oboro seals away her mystic eyes, Tenzen attempts to rape her before being stopped by a Koga attack. Engaging the Koga ninja, Gyobu Kasumi, Tenzen hears how Gyobu's father was murdered by Iga and in their duel, tricks Gyobu into striking at a child, forcing the boy's father to take a fatal blow, solely so the child's pain rattles Gyobu enough for Tenzen to win. Tenzen sadistically toys with other ninja and even abandons his loyal student Koshiro because Koshiro had objected to his actions with Oboro. When Tenzen captures the beautiful Koga shinobi, Kagero, because her powers make raping her impossible, he brutally tortures her by impaling her with needles, before attempting to rape Oboro with intent of forcing her to dispel Kagero's powers to force himself on her as well. When he faces off with the young Koga leader Gennosuke, Tenzen reveals his intent to destroy all in his path, end the war victoriously and force Oboro to be his bride while he rules Japan from the shadows through the young shogun.
Purity Sue: Please, please, PLEASE someone else tell me they were as annoyed with how incredibly innocent they made Oboro in the anime? She went from being a Wide-Eyed Idealist in the novel/manga to a Too Good for This Sinful Earth. It's like they changed her just so we'd pity her more. Her "We'll be together in the next world" changed to "Even in the afterlife, he'll never forgive me". Then there's how she had to apologize for Jingorou's actions when Gennosuke was still in Tsubagakure, how Akeginu admitted to how Oboro was right after angrily stabbing Hyoma's corpse . This list could go on and on. Gennosuke's no exception either, but that was more of an Adaptational Wimpification. Then again, this could just be the troper being cynical.