History NightmareFuel / FutureDiary

* Any form of FanDisservice with Yuno involved, ranging from holding her parents' skulls whilst in her underwear to her clothes being ripped and on the verge of being gang-raped by Tsubaki's gang members.

* The [[SugarWiki/MomentOfAwesome crowner]] for this is when she first comes to the realization that everything will be okay if Tsubaki just disappeared. The [[http://www.mangareader.net/384-26026-8/mirai-nikki/chapter-7.html pleased-as-punch look]] on her face as her alignment shifts permanently to ChainsawGood is downright unsettling.

* Her initial introduction. It's made very apparent that she stalks Yukiteru. The one part that stands out the most is when she's looking through the mail slip in the door.

* A particularly disturbing mention must be given to Yuno in Chapter 49/Episode 22: Yuno has stabbed herself and Akise has left her for dead, and is trying to reach Yukiteru before he kills the Eighth and Hinata/Mao/Kousaka. Yuno, seemingly bleeding to death on the ground, calls Yuki and tells him that her diary told her that they were going to betray and kill him. Yuki, in the middle of a mental breakdown at the time, believes her and shoots (and kills) Hinata. Yuno, on the other line, starts ''laughing her butt off'', while a shot of her diary reveals that, no, Yuki's friends weren't lying. [[MurderTheHypotenuse She just didn't want them to have him.]] [[MagnificentBastard Good Lord.]]

* A few of the OST tracks count. "Cries from Avici" is a ''very'' good example, and it's even worse when you translate the lyrics, which are all about her not fearing Hell because it's what she ''lives every single day''. Brrr... And the rabid, wild pace of Third's theme "Antares CR302", fits perfectly for a SerialKiller.

* Yuno's DeathGlare [[http://images5.fanpop.com/image/answers/2850000/2850210_1341425129644.95res_500_281.jpg in episode 4]] after overhearing that Tsubaki insulted her and told Yuki to avoid Yuno. Said scowl with shrunken irises is also used [[http://www.crunchyroll.com/anime-news/2012/08/27-1/spirit-of-yandere-captured-in-future-diary-yuno-gasai-real-action-heroes-figure in this action figure as well]].

* Yuno allowed Yuki to kill himself so she could become God and bring him back to life. When this [[AllDeathsFinal failed]] she jumped back so she could be with him again for two-three months, killing all the while. When Yuki once again refuses to kill her, she intends to kill him and go back to do it all over again. Presumably indefinitely. Luckily this is only the 2nd-world.

* This last point gets a CallBack when Yuki's dad comes back into his life. Yuno speeds the day spying on the two and Minene planning on stabbing his dad if the opportunity arises. She only backs out on the idea after believing that he's understanding like Yuki's mom.

** SUPPOSEDLY normal. In the anime, she's sitting with her friends when she looks out the window and sees world 3 Yuki with the girl he'd originally been crushing on. Her hands tremble as she clutches her cup of tea and her voice sounds a little strained as she tells her friends she's fine. For the observant it suggests that world 1 Yuno supplanted her analog AGAIN in this new world, if only to observe Yuki from a distance.

* The Third Diary Owner was Takao Hiyama, homeroom teacher of Yuna and Yukiteru. He's different from the other diary owners though. While the others were mayors, terrorists, cops, or even school children, this guy was a SERIAL KILLER. Oh, and boy was he paranoid about being caught. As the serial killer he is, Hiyama wears a hat/wig thingy to hide his identity, a gas mask with goggles and a bulletproof and apparently EXPLOSIVE-proof jacket. This makes him impervious to almost ANYTHING. His trademark weapon was a MACHETE. Oh, did I mention that he kept a diary that recorded his victims and decides how to best corner and inevitably kill them? He didn't get much screen time in the end, but if it wasn't for him, Yukiteru's identity as First most likely would have stayed secret for longer as he was the first one to discover him (with possibly the exception of Eleventh, but he had hax). This guy is THE killer.
* Reisuke (The Fifth) is a prime example. A 4-year-old who floods the entire Yuki household with poisonous gas in order to kill Yuki and Yuno. The innocent expression he keeps through out just makes it creepier.

* [[ProtagonistJourneyToVillain Yuki's transformation]] into a WellIntentionedExtremist bordering on AxeCrazy almost as frightening as Yuno. It's BreakTheCutie, CorruptTheCutie, StartOfDarkness, SanitySlippage, and ToxicFriendInfluence all rolled up into a drawn out, horrifying ordeal. And he was just a fourteen year old boy... What makes this worse is that some viewers/readers [[MisaimedFandom were actually cheering]] when Yuki finally snaps and starts killing people wantonly. Sure, he TookALevelInBadass, but when he's [[KickTheDog killing Eighth's orphans, using Minene and Nishijima as bait to lure Eleventh and his goons]], and ''murdering his friends in cold blood,'' you almost start missing the old Yuki.

* Yukiteru attempts to destroy Minene's cell phone by throwing a dart, but she moves the phone away from her face, resulting in the dart meeting her [[EyeScream eye]]. She gets second scoop of EyeScream, when she is drugged by Twelfth, and unable to fight back, has her bad eye plucked out of her head. By hand.

[[spoiler: This page is a testament to my love for you, Yukki-kun. You aren't allowed to leave.]]

* Kurou Amano, Yuki's dad, appears in Chapter 30 claiming to just want to check on his son, but it turns out that he has only returned to destroy Yukiteru's diary in order to fulfill a deal with Eleventh. Despite his only clear desire being to free himself from his debts, he does try to save Yuki when the latter almost falls to his death, but takes the parachute away from Yuki before the tower crumbles soon after. He then stabs his wife when she tries to take him to the police and escapes, though is stabbed to death himself two chapters later by the Eleventh's men.

* Kurou Amano, Yuki's dad, appears in Chapter 30 claiming to just want to check on his son, but it turns out that he has only returned to destroy Yukiteru's diary in order to fulfill a deal with Seventh. Despite his only clear desire being to free himself from his debts, he does try to save Yuki when the latter almost falls to his death, but takes the parachute away from Yuki before the tower crumbles soon after. He then stabs his wife when she tries to take him to the police and escapes, though is stabbed to death himself two chapters later by the Eleventh's men.