History YMMV / TheTestamentOfSisterNewDevil

* HilariousInHindsight:
** This isn't the first time Creator/LaurenLanda, Mio Naruse's English voice actress, would voice [[Literature/HighSchoolDXD a devil who falls in love with the protagonist]].
** This also wasn't the first time Creator/KirkThornton played [[Anime/SamuraiChamploo a warrior named Jin.]]
** Creator/RayChase would later play [[Manga/JoJosBizarreAdventureGoldenWind another enemy-turned-friend]] of the protagonist.

** This isn't the first time Creator/LaurenLanda, Mio Naruse's English voice actress, would voice [[LightNovel/HighSchoolDXD a devil who falls in love with the protagonist]].

** Despite being somewhat of a minor character compared to the other girls, the [[ChristmasCake Older]] [[HospitalHottie Nurse]] Chisato is a favorite among the fandom.

* JerkassWoobie: Takashi, we're sorry that your mother was killed in the Brynhilder/Banishing Shift incident, but Mio watched her foster parents getting killed in front of her and you don't see her acting like a bitch! And don't even get started with [[StoicWoobie Bas]][[TheScapegoat ara]]'s perspective!

* UnintentionallyUnsympathetic: The hero clan, especially Takashi, resenting Basara is meant to come off as a JerkassHasAPoint since their friends were inadvertently killed by his Banishing Shift. However, most fans ignore it due to the fact that they were Basara's friends too, his Banishing Shift was triggered by the demon hunter's Brynhildr-induced rampage that ''[[DidntThinkThisThrough he himself caused]]'' and if it hadn't, Basara and Yuki would very likely have been two more casualties before he likely would've gone on to slaughter the rest of the village unopposed, and they come off less as [[KnightInShiningArmor knights in shining armor]] tasked with protecting humanity and more as [[KnightTemplar self-righteous psychopathic]] {{hypocrite}}s who go out of their way to try and murder an innocent girl just for petty revenge. Their actions don't sit well with Mio ''[[BerserkButton at all]]''. To compound their hypocrisy, we have Nanao's testimony as to how her home village was wiped out for the CrimeOfSelfDefense, and her people brought to the brink of extinction... Then Basara returns from the Demon World, that he was dragged to, after eliminating a major threat in the form of Chaos (a [[ApocalypseHow Class 3a threat minimum]]), and how do the village elders react? [[UngratefulBastard Summoning him back to the village for violating taboos that no longer apply to him, as he's an exile.]] It seems they also conveniently forgot that his actions should have benefited the truce that was made between the Hero Clan and the Demon Factions but they took the side of the very person who nearly '''damned''' them in the first place and failed to learn from that mistake.

* StoicWoobie: Poor Basara. He doesn't show much emotion when dealing with demons who attack his stepsisters or former comrades who accuse call him out on his actions, but Mio is at least aware that it does bother him lots.

** Creator/RayChase would later play [[Manga/JojosBizarreAdventureVentoAureo another enemy-turned-friend]] of the protagonist.

* HilariousInHindsight: This isn't the first time Creator/LaurenLanda, Mio Naruse's English voice actress, would voice [[LightNovel/HighSchoolDXD a devil who falls in love with the protagonist]].

** This also wasn't the first time Creator/KirkThornton played [[Anime/SamuraiChamploo a guy named Jin.]]

** Despite being somewhat of a minor character compared to the other girls, the [[ChristmasCake Older]] [[HospitalHottie Nurse]] Chisato is quite popular.

** Yahiro/Lars is also a fairly popular character for his frenemy relationship with Basara and his BigDamnHeroes moment in Volume 3.

**

** If Zolgia didn't cross it when he [[spoiler:killed Mio's foster parents]], he most certainly did when he [[spoiler:tried to kill Zest once she was of no use to him and went even further by brutally killing Shella, or rather a doppelganger of her created by Lars.]]

** If Zolgia didn't cross it when he [[spoiler:killed Mio's foster parents]], he most certainly did when he [[spoiler:tried to kill Zest once she was of no use to him.]]

* JerkassWoobie: Takashi, we're sorry that your mother was killed in the Banishing Shift incident, but Mio watched her foster parents getting killed in front of her and you don't see her acting like a bitch!

* UnintentionallyUnsympathetic: The hero clan, especially Takashi, resenting Basara is meant to come off as a JerkassHasAPoint since their friends were inadvertently killed by his Banishing Shift. However, most fans ignore it due to the fact that they were Basara's friends too, his Banishing Shift was triggered by the demon hunter's Brynhildr-induced rampage that ''[[DidntThinkThisThrough he himself caused]]'' and if it hadn't, Basara and Yuki would very likely have been two more casualties before he likely would've gone on to slaughter the rest of the village unopposed, and they come off less as [[KnightInShiningArmor knights in shining armor]] tasked with protecting humanity and more as [[KnightTemplar self-righteous psychopathic]] {{hypocrite}}s who go out of their way to try and murder an innocent girl just for petty revenge. Their actions don't sit well with Mio ''[[BerserkButton at all]]''. To compound their hypocrisy, we have Nanao's testimony as to how her home village was wiped out for the CrimeOfSelfDefense, and her people brought to the brink of extinction... Then Basara returns from the Demon World, that he was dragged to, after eliminating a major threat in the form of Chaos (a [[ApocalypseHow Class 3a threat minimum]]), and how do the village elders react? [[UngratefulBastard Summoning him back to the village for violating taboos that no longer apply to him, as he's an exile.]]

** If Zolgia didn't cross it when he [[spoiler:killed Mio's foster parents]], he most certainly did when he [[spoiler:tries to kill Zest once she's of no use to him.]]

**

** [[SerialRapist Zolgia]] is the first major villain encountered by Basara Tojo and his friends. A [[AristocratsAreEvil hedonistic Demon Marquis]] who helped overthrow Mio's father, Demon Lord Willbyr, Zolgia desires to restart a war to [[WarIsGlorious show how amazing he is on the battlefield]], and also murdered Mio's foster parents, a pair of kind demon orphanage owners. Zolgia regularly abducts other [[DepravedBisexual attractive young men and women to rape]], relishing in the pain from breaking their pacts to other masters and servants while having them and others' minds broken to serve as doll-like playthings for his amusement. Zolgia's loyal creation Zest fails no better, as Zolgia plans to rape her and dispose of her when she ceases to be of use before replacing her with an identical clone to repeat the cycle.

** Mio begins to participate in orgies with Basara and the rest of his harem by volumes 10 and 11. By the time the series ends, she's among the [[spoiler: 8 girls [[MarryThemAll wed to him]] and they're all with child. Chisato casts a protective barrier around each embryo, which allows Mio and the others to continue to have sex with Basara, without risk of miscarriage]].

* UnintentionallyUnsympathetic: The hero clan, especially Takashi, resenting Basara is meant to come off as a JerkassHasAPoint since their friends were inadvertently killed by his Banishing Shift. However, most fans ignore it due to the fact that they were Basara's friends too, his Banishing Shift was triggered by the demon hunter's Brynhildr-induced rampage that ''he himself caused'' and if it hadn't, Basara and Yuki would very likely have been two more casualties before he likely would've gone on to slaughter the rest of the village unopposed, and they come off less as [[KnightInShiningArmor knights in shining armor]] tasked with protecting humanity and more as [[KnightTemplar self-righteous psychopathic]] {{hypocrite}}s who go out of their way to try and murder an innocent girl just for petty revenge. Their actions don't sit well with Mio ''[[BerserkButton at all]]''. To compound their hypocrisy, we have Nanao's testimony as to how her home village was wiped out for the CrimeOfSelfDefense, and her people brought to the brink of extinction... Then Basara returns from the Demon World, that he was dragged to, after eliminating a major threat in the form of Chaos, and how do the village elders react? [[UngratefulBastard Summoning him back to the village for violating taboos that no longer apply to him, as he's an exile.]]

* UnintentionallyUnsympathetic: The hero clan, especially Takashi, resenting Basara is meant to come off as a JerkassHasAPoint since their friends were inadvertently killed by his Banishing Shift. However, most fans ignore it due to the fact that they were Basara's friends too, his Banishing Shift was triggered by the demon hunter's Brynhildr-induced rampage that ''he himself caused'' and if it hadn't, Basara and Yuki would ery likely have been two more casualties before he likely would've gone on to slaughter the rest of the village, unopposed, and they come off less as [[KnightInShiningArmor knights in shining armor]] tasked with protecting humanity and more as self-righteous psychopaths who go out of their way to try and murder an innocent girl just for petty revenge. Their actions don't sit well with Mio ''[[BerserkButton at all]]''. To compound their hypocrisy, we have Nanao's testimony as to how her home village was wiped out for the CrimeOfSelfDefense, and her people brought to the brink of extinction... Then Basara returns from the Demon World, that he was dragged to, after eliminating a major threat in the form of Chaos, and how do the village elders react? [[UngratefulBastard Summoning him back to the village for violating taboos that no longer apply to him, as he's an exile.]]

** The [=OVAs=] only have Basara and Chisato go as far as tense makeout sessions and foreplay. But official scans from the {{Light Novel}}s themselves show they've gone as far as full intercourse[[note]]Basara finally takes Chisato's virginity during Vol.7, by creating a copy of himself to [[ThreewaySex gangbang her]][[/note]].
** The same is true where Mio's concerned, as official scans show Basara having sex with the rest of his harem; including her.