WARNING: Late Arrival Spoilers abound for Mahou Sensei Negima!.UQ Holder! (aka ユーキューホルダー!, or "Eternity Holder!") is a Stealth Sequel to the popular manga series Mahou Sensei Negima! by Ken Akamatsu. Set 75 years after the end of Negima, it explores a number of ambiguous or unexplored details left at the end of that series, such as the space elevator and the adoption of magic on earth. The story began serialization in late August of 2013.The story begins in the 2080s, a decade after the existence of magic was disclosed to Earthlings, though few are able to use it well. Touta Konoe, a teenage boy living in a small village, has heard of it, but cannot cast spells. When it becomes clear that his teacher and guardian, Yukihime, is quite familiar with magic, he tries to learn it from her, but is rebuffed. He and his friends then meet another teacher who passes along a surefire way to beat Yukihime with the use of a magic bracelet and a few binding spells. However, he turns out to be a bounty hunter and goes after Yukihime — who is secretly Evangeline A.K. McDowell, an infamous vampire sorceress with a massive bounty on her head, but also an ally of Negi Springfield, the mage who saved Mundus Magicus sixty years ago when he was just a boy and paved the way for the gradual revelation of magic. After he nearly kills both her and Touta, Touta drinks the blood of Yukihime/Evangeline and becomes an immortal like her in order to gain the power to stop the assassin. Though she apologizes to Touta, he refuses to believe that she has done anything wrong, or that immortality is a curse, and together they set out into the future.UQ Holder! is one of the first round of manga to be simultaneously published on Crunchy Roll.
An Arm and a Leg: Touta's arm is cut off in the first chapter by the bounty hunter after Yukihime.
Arc Words: "Keep moving forward" and "a little bit of courage is the real magic", the Arc Words from Negima, show up here as well.
Badass Crew: UQ Holder, an organization made up of immortal humans, vampires, robots, demons, gods, and various other monsters. One of their duties is to help and protect the various friendly monsters that may be targeted by hate and/or monster hunting groups.
Another one was shown in a flashback 20 years prior to the series: one consisting of Evangeline, Negi, Fate, Albireo, Chachamaru, Mana and Zazie, all pursuing the Mage of the Beginning yet again.
Berserk Button: Hurting Yukihime or Touta's friends is a good way to end up in the hospital.
Bitch in Sheep's Clothing: Mr. Tachibana looks like a friendly, helpful guy, but he actually set up Yukihime's students to depower her so he could leap in to grab her bounty. Just so that it's clear that he's definitely a bad guy, he even makes it clear that he intends to kill all five of them as well.
Big Damn Heroes: Eva shows up with three of the high-ranking memebers of UQ Holder in order to save Touta in Chapter 28.
Remember when Eva was cursed to remain within the confines of Mahora Academy before the main story of Negima? Chapter 10 has her leaving Jinbee underground about 2 years before the start of the story.
The underground mansion used by Alberio in Negima reappears in the underground cavern used by UQ Holder.
The entire Class 3-A appears walking with Evangeline in the opening pages. As they wave good bye to her in the following panel, each character is wearing the clothes they were last seen with at the end of the previous manga.
Curb-Stomp Battle: Fate delivers one to the Numbers in an alternate future, taking out Touta, Kuroumaru, Karin, killing Ikkuu and petrifying Kirie. She only managed to go back in time by slashing her own throat before the petrification finished, allowing her immortality to trigger.
Cutting the Knot: So you need to capture the vampire, but you can't get past the immortal that can Retcon damage away? Teleport her to the moon instead so she can't get back in time.
Death by Origin Story: Both of Touta's parents died two years before the start of the series. They were apparently members of the Konoe family, but it's not clear what their precise relationship to Konoka (children, cousins, adopted children, etc) was.
Defeat Means Friendship: Invoked. Touta makes a bet with Kuroumaru that Kuroumaru has to do whatever Touta says if Touta wins a bout between the two. When Touta does win, his only request is Kuroumaru becomes his friend (and sign a contract formally establishing such).
Also partially inverted, since Kuromaru is really from a group of people who are essentially genderless until the age of sixteen, at which point they choose which gender they wish to be. One of the plot threads in the Manga is regarding Kuromaru struggles to decide which gender to become when he comes of age.
Emergency Transformation: Touta is forced to drink Evangeline's blood in order to save her, himself, and his four friends in the first chapter.
Elaborate University High: The fourth story arc sends Touta, Kuromaru, Karin, and Ikku to Mahora of all places, though it is now called Amano-Mihashira Academy City. As the name suggests, the campus has become so massive that it's now effectively a city within the city.
Fanservice: First chapter in, and we've already got topless shots of Yukihime. Although compared to the female Fanservice in Negima and Love Hina, it's barely there. The males provide a lot of it this time around, especially Touta.
Amped up in chapter 17, wherein Karin spends the majority of the chapter fighting naked (after a full on rear end nude shot while showering).
Fate Worse than Death: When you are an immortal you can survive things you really wouldn't want to. Like being eaten by a magical beast and having to endure thirty years of being digested, or having your head locked up in a safe and dropped down the Mariana trench while alive and conscious the whole time.
Foreshadowing: Yukihime's speech about the different kinds of immortality in Chapter 6 is accompanied with images of various characters. Since then, not only have a couple of these characters made appearances, but what makes them immortal matches what they were "labeled" with in this chapter.
Healing Factor: Vampires of Eva's level can regenerate entire limbs in the blink of an eye. Though Touta does soon lose consciousness after too much of that. Later it's revealed this healing factor has a weakness: the limb only regenerates if the original limb is destroyed. If the limb is merely cut off and doesn't get destroyed, no regeneration happens because the arm is still linked to the body and therefore not considered dead.
In the case of Kuroumaru's, his regenerates due to body modification so if anything gets injured or cut off it regenerates.
Hot Teacher: Yukihime/Evangeline's first appearance is a shot of her rear, with her students mentioning that they never get tired of seeing it.
Hotter and Sexier: Since she's no longer bound to Mahora, Evangeline's free to use her magic as she pleases and uses age changing pills to make herself look about twenty years older. It looks quite a bit different from her established "older" form, likely because she's trying to blend in rather than look like The Vamp.
Immortality: A major theme. UQ holder is an entire organization of beings with various types of immortality, drawing a clear line between not aging and actual invulnerability.
The Ageless: Jinbei stopped aging after eating the flesh of a mermaid in the 7th century, but lacks the Healing Factor of most other immortals.
Fountain of Youth / Immortality Inducer: The dark skinned man seen in chapter 6 gained immortality by using immortality granting items like Philosopher Stones, Miracle Drugs and Holy Wines.
From a Single Cell: Kuroumaru Tokisaka's immortality comes from a powerful Healing Factor, which staves off the effects of age and allows him to regenerate his body even after losing more than half of it.
Save Scumming: Kirie Sakurame can set a literal save point with her specialized ritual magic. Upon death she will return to the time and place she created the save point. She can even bring people back with her in time.
Kid Hero: Though a little older than most examples of this trope, Touta is still only 14 years old.
Kill Sat: Chapter 37 reveals that the Holders have access to Chachamaru's Al-Iskandariya Orbital Satellite Weapon, and is currently under Ikku's control.
Living Forever Is Awesome: Touta doesn't put much stock in the "living forever sucks" line of thought Evangeline espoused through the decades. Though pulls a reversal in chapter 2 (Played for Laughs), when he finds out that he's stuck as a short twelve year old for the rest of eternity, which, as it turns out, interferes with the dream he and his schoolmates promised each other.
Losing Your Head: Cutting off the head of a vampire as powerful as Evangeline or Touta doesn't actually kill them immediately. And as long as they can get their head back on their body, they're just fine.
Magitek: It's stated that Muggles who can't use magic on their own can purchase what are basically magical iPhone apps that allow the use of simple spells.
Mooks Played with. A group of soldiers with identical weapons and armor attack Touta, and he clearly considers them video game style Faceless Mooks. They proceed to beat the hell out of him with ease. Though they are generic and, as a later fight shows, not incredibly powerful, they're still way stronger than him.
New Neo City: "New Tokyo: Ama No Mihashira City"; since the space elevator (the "pillar of heaven") has been built in Tokyo, the city − as well as Mahora academy − was renamed after it it seems.
Older and Wiser: Evangeline returns from Negima to serve as the new main character Touta's guardian and mentor.
Punny Name: UQ is pronounced the same as 悠久, the Japanese word for Eternity.
Reused Character Design: Shinobu Yuuki not only has the same given name, character design and personality as Shinobu Maehara from Love Hina, they also address the protagonist as "senpai", to make it extra obvious.
R-Rated Opening: The first chapter involves Yukihime/Evangeline being rather graphically chopped to pieces by a bounty hunter. Needless to say, Akamatsu is making it clear from the start that this is not going to be a Love Hina clone.
Series Goal: Touta wants to climb to the top of the Star Scraper tower, but then he finds out all you have to do to climb it is buy a ticket. Then he decides to start organization to bring fellow immortals together, only to find one already exists. It's starting to become a Running Gag that Touta's goals are ether easy to achieve or already done.
Spider Tank: Strong Hand deploys one against Yukihime and Touta, but it doesn't survive long enough to be of any use, courtesy of other Numbered members of UQ Holder.
Notably, it looks a lot like one of the mechs(the one she sent after Negi, even) that appeared in Chao's forces during the Mahorafest battle.
Spin-Offspring: The main character Touta Konoe is (allegedly) the grandson of Negi Springfield.
Star Scraper: There's an impossibly tall tower in the capital where Touta believes strong mages live at the top. Yukihime/Evangeline tells him it's an orbital elevator.
Stealth Sequel: The fact that this series is a sequel to Negima! wasn't revealed until the actual release of the first chapter. Although it's still unclear whether it is a direct continuation of Negima!'s ending or it is set in some Alternate Continuity.
Sudden Sequel Death Syndrome: Negi is apparently dead, and perhaps so are the rest of Ala Alba, Class 3-A, and majority of the cast of Negima!. Whether this is relevant to the backstory, or is simply a byproduct of the series being set so far in the future is unknown, let alone if others actually lived through the decades through magic or life-extension technology.
In chapter 24 we know, Negi and a few more characters were at least alive 20 years ago, with their appearance and silhouette nearly unchanged from the previous series. Chapter 42 confirms that Negi at least is still very much alive, although apparently imprisonned somewhere.
And in chapter 33, Fate Averruncus is still around. For some reason he's known as UQ Holder's true enemy.
Chapter 37 reveals Chachamaru's Al-Iskandariya Orbital Satellite Weapon is now under the control of UQ Holder, namely owned by Yukihime and controlled by Ikku. Given this is Chachamaru's Pactio item, which is implied in Negima to not be transferable (and a little beat up), it could be implied that one character from Class 3-A could still be alive/around somehow (or it got "transferred" via an undisclosed means).
In Chapter 37, a waitress disables Ikku with some well timed swordplay. In Chapter 39, she identifies herself as Tsukuyomi Iwai. Whether this is the Loli Assasin/Setsuna's "Stalker" from Negima! is up for debate given her eyes are a different color.
Summon Bigger Fish: Inverted. Rather than calling Yukihime to fight Fate, they bring Fate to her.
Talking Is a Free Action: Averted in Touta's fight against the bounty hunter. After his first attack is blocked Touta tries to throw your standard Shonen protagonist speech at the villain. Except the villain doesn't cooperate, gets behind Touta and lobs his arm off mid-sentence.
Time Skip: The series takes place in the 2080s, as near as can be figured out from some very vague numbers on gravestones, around 80 years after Negima!. Chapter 45 gives the date clearly as 2086.
Title Drop: In the sixth chapter, we're introduced formally to UQ Holder: A group formed by an immortal Eva knew that would gather other immortals together into a family.
"We, UQ Holder, as a faction of humans who are not bound by the ways of humans, have always been protecting those who have been ejected, trampled on and forgotten by the world of humans."
Wham Episode: Chapter 24, which confirms the presence of Magia Erebea as Touta's newly-awakened power, and adds a flashback that shows Negi and a few of his endgame allies being alive 20 years prior to UQ Holder!, still fighting the Mage of the Beginning.
Though some fans did suspect it, in chapter 42, Fate declares that Negi is still alive and he's trying to save him. And that by saving him, he saves the entire solar system. However, he also does note that, yes he did kill Touta's parents.
Wham Line: "The strongest Grand Mage in the Solar System...Fate Averruncus."
Who Wants to Live Forever?: According to Yukihime/Evangeline, immortality eventually becomes a curse. She appears to have outlived most of the original Negima! cast, leaving her alone once again. She's even apparently left Chachazero behind, though the opening colored pages are likely to be more symbolic than literal.
Years Too Early: Quoted word-for-word when Yukihime scolds Touta and his friends after they attack her for the first time on-panel.