History Manga / DevilsLine

* TechnicallyLivingVampire: Devils are humans born with vampire-like traits due to a [[{{Mutant}} genetic mutation]]. They lack any typical vampire weaknesses (sunlight, garlic, and so on), but they do have enhanced senses, reflexes, and strength. They also have fangs when they transform, but instead of the typical elongated canines in the upper jaw, the first premolars in both the upper and lower jaws sprout into long, prominent tusks that distort the mouth into a snarling grimace, giving them an appearance much like the traditional ''{{Oni}}''.

* OurVampiresAreDifferent: Devils are humans born with vampire-like traits due to a [[{{Mutant}} genetic mutation]]. They lack any typical vampire weaknesses (sunlight, garlic, and so on), but they do have enhanced senses, reflexes, and strength. They also have fangs when they transform, but instead of the typical elongated canines in the upper jaw, the first premolars in both the upper and lower jaws sprout into long, prominent tusks that distort the mouth into a snarling grimace, giving them an appearance much like the traditional ''oni''.

A sequel, Devil's Line II [Gyakushuu], began serialization in January 2022.

* GoodPeopleHaveGoodSex: Subverted. Anzai and Tsukasa love each other and would really like to get it on. The only problem is that Anzai transforms into an uncontrollable, bloodthirsty monster when he's turned on.

NeedsWikiMagicLove

* HeelFaceTurn: Zero Seven and Zero Nine, who are the members of the Devil Extermination group CCC, experience this after meeting with Tsukasa Taira. This is proven by the former's case as after seeing Tsukasa and Anzai's strong bond, she then began to change her view of the devils as a whole.

After over five years, Devils' Line has ended on December 22, 2018 with 66 chapters. Currently there are five extra side-story chapters being released.

* AdaptationalEarlyAppearance: Both Hans and Kikuhara make an EarlyBirdCameo appearance in the first episode.

* AdaptationalEarlyAppearance: Both Hans and Kikuhara make an appearance in the first episode.

** Hans Lee is pretty much this. He is a bit of a foreigner who helps Anzai and Tsukasa out of trouble. Despite being raised in Japan, he is the child of a Chinese devil mother and a German human father.

* TheBartender: A guy called Toshiro Sakaki runs a bar where the F Squad mostly spends their time.

** [[spoiler:Kikuhara. While he's more of a WolfInSheepsClothing, he actually manages to trick most of the squad force into not realizing that he is actually a leader of a terrorist organization called CCC.]]

* CorruptPolitician: [[spoiler:The Minister of Health, Labor and Welfare Parliament Secretary, Kaname Shirase, is revealed to be the one who funds the anti-devil organization, CCC, and becomes a member of it with the codename Zero One.]]
* CrapsackWorld: Needless to say, the world isn't a nice place to live in for the humans and devils alike. The humans are seemingly living their own lives in the first half. [[spoiler:However, after the Ikebukuro incident that exposes the Devils, most of the humans end up becoming scared and become xenophobic against them.]] The devils have a pretty horrible life too, as they need to control their bloodlust. What's worse is that when one of them marries a human and accidentally sees blood, they can't help but hurt their human spouse. [[spoiler:After the Ikebukuro incident, it only gets worse from there for the devils themselves.]]

* ExhaustedEyeBags: Unlike other devils who have eye-bags due to not drinking blood from other people, Megumi Ishimaru's eyes are just regular eye-bags from sleep deprivation after reading so many mangas and light novels at night without any rest.

* LaserGuidedKarma: After Keiji tries to rape Tsukasa, he gets beaten by Anzai after Anzai sees Tsukasa's blood, gets fired from his position, his wife divorces him and lastly, one of the students leaks his personal information, which ruins his reputation.
* TheMole: The current leader of the F Squad, Megumi Ishimaru, is revealed to be Jason from the Devil Extermination Organization called CCC. However, he is also the mole for CCC, as his purpose in joining the organization is just to gather intel.
* {{Otaku}}: It is revealed that the current leader of F Squad, Megumi Ishimaru, loves to stay up all night reading manga and other books, which results in sleep deprivation and having droopy eyes and heavy dark circles under his eyes.

* RapeIsASpecialKindOfEvil: Needless to say, many people didn't like what Ochiai has done after tries to raping Tsukasa by force. He got fired from his position, his wife divorced him and one of his students leaks his personal information on internet which ruined his reputation.
* SerialKiller: Tamaki Anzai is considered to be one of the most dangerous devils in history, as he kills more than 15 people when he loses control of himself.

** May also apply to Anzai, who is mostly calm and collected most the time. However, he will step into the NotSoStoic territory when Tsukasa is attacked by someone or when he sees blood, like most vampires.

Created and illustrated by Ryo Hanada, ''Devils' Line'' is a dark fantasy manga series that was released in 2013 and was published by Kodansha and the English version was released by Vertical. It also has an anime adaptation produced by an obscure anime studio called Platinum Vision that was premiered on April 7, 2018. The show consists of [[TwelveEpisodeAnime twelve episodes]] and an [[OriginalVideoAnimation OAD]].

** Anzai's parents. Midori Sato, a human researcher and Tamaki Anzai, a mass-murdrering convict devil.

In Japan, there are two divided races. One is original humans and the other is vampires (also known as [[OurVampiresAreDifferent devils]]). The devils appear to be regular humans on the surface, but when they see [[BerserkButton blood]], they become uncontrollable monsters that could kill anyone. To this end, they need to use sedatives to calm themselves down and try to blend in with society, even if it's a little bit of a challenge for them.

** Never, ever hurt Tsukasa in front of Anzai. If you do, he will go berserk and then turn himself into a devil.
** With the exception of Hans Lee, who can control his blood pressure, Half-Devils will go berserk after they see human blood, which could harm most of the people around them.

* {{Ephebophile}}: Tsukasa's professor, Keiji, seems to take an interest in adolescent women such as Tsukasa in a very creepy way.
* ExhaustedEyeBags: Unlike other devils who have eye bags due to not drinking blood from other people, Megumi Ishimaru's eyes are just regular bag-eyes from sleep deprivation after reading so many mangas and books at night without any rest.

* BigBad: Kirio Kikuhara, who works for the Police Task Force, is revealed to be the commander of the Devil Extermination organization, the Chosen Civil Community.

* DirtyCop: [[spoiler: Kirio Kikuhara is a cop who works for MPD Public Safety Division 5 or A Squad. However, he is a vicious member of the devil extermination group CCC.]]

* FreudianExcuse: Nanako Tenjo becomes the elite sniper of the CCC organization because her mom was raped and killed by a devil and then she was persuaded by [[spoiler:Kikuhara]] to join his side to exterminate all the devils.

* LackOfEmpathy: [[spoiler:Kikuhara]] is a man who is unable to feel love towards someone either as a regular companion or being attracted sexually towards them. He also has no compunctions when throwing his companions away like a tissue to achieve his own goals.

* ObviouslyEvil: [[spoiler:If you look at Kikuhara's face, especially his slanted eyes and a bit of a devilish smile, Then you notice something is not right about him.]]

* SerialRapist: Ochiai is implied to have multiple relationships with his students and he tries to rape Tsukasa to satisfy his own lust despite being married and having two children.

** Hans Lee is pretty much this. He is a bit of a foreigner who helps Anzai and Tsukasa out of trouble. Despite being raised in Japan, he is the child of a Chinese Devil Mother and a German human father.

* OurVampiresAreDifferent: Devils are humans born with vampire-like traits due to a [[{{Mutant}} genetic mutation]].

** Kanzaki (a non-binary and asexual human) and Eka (a devil with ReMI).