"You know what they say, 'Close only counts in horseshoes and hand grenades'.
Gentaro Kisaragi, providing the story's Title Drop
"Horseshoes and Hand Grenades" is a collection of Kamen Rider FourzeAlternate Universe Fics. Taking place near the climax of the Aries Zodiarts arc, it starts with one simple idea. What would've happened if Gentaro wasn't revived by the Cosmic Switch? What if something else revived him, and what if said something was evil? From this, the world of Fourze has gone downhill. With a being known as Ophiuchus involved in Gentaro's resurrection and Face-Heel Turn, all factions involved in the plot change, and some not for the better. The Kamen Rider Club have to live with the fact that they caused this whole mess to happen, the bad guys have to resort to a new plan now that Gentaro has derailed theirs, and Ryusei is going to have to go through hell thanks to his decision to kill Gentaro.In other words, if you thought the Cerebus Rollercoaster in Fourze was bad, this fic has taken one of the most optimistic Kamen Rider series and made it Darker and Edgier.The series is currently being written by Green Phantom Queen completed with the main story completed at 28 chapters (plus three intermissions). It can be read here. The stories biggest strengths is the focus and backstories on all the characters in the Kamen Rider Fourze mythos (big and small), the development of Gentaro becoming an evil, malicious character through the influence of Ophiuchus, and the consequences of one's actions. Moreover, the author has also added the combined strength of threedifferentKamen Riders to even the playing field and more are destined to come as the story unravels.The author is also working on many other works that are in the same universe, revolving around other characters in Kamen Rider Fourze—andcharactersfromothershows—that get involved with this madness because of Gentaro's death, some of them happening around the same time as the main conflict. According to the author's profile, they're divided into parts. These are:
Cold Iron Chronicles
Part 0: Kill the Lights (Background and Prologue)
Summertime Sadness is a collection of shorts detailing the lives of female Amanogawa students prior to the events of Horseshoes and Hand Grenades.
Part 0.5: Looking Glass (Gentaro Kisaragi focused)
Tears to Shed is a Perspective Flip of the first 13 chapters of Horseshoes and Hand Grenades, detailing Gentaro's struggle to truly become the Serpent-bearer and showing what he was doing when the story wasn't focused on him.
Another Me is a one-shot set early in Horseshoes and Hand-Grenades showcasing Gentaro's change into the Serpent-bearer. It is complete.
Birthday Massacre is a collection of shorts that tell of Gentaro's struggle with himself as different parts of him try their hardest to turn away from Ophiuchus and go back into the light.
Part 1: Play Dead (Kyoto Arc and Events Surrounding It)
A Month of Sundays, during the second day of the Kyoto Arc in Horseshoes and Hand Grenades, a group of Amanogawa High Students hurry to Futo to stop Foundation X from transforming former Switchers into Zodiarts. They also get involved with other Kamen Riders who accidentally got in the crossfire.
Wheel of Fortune is the sequel to Who Decides that follows up on Ryusei's friend, Mei Shirakawa and her struggles to understand why Ryusei did what he did. This also explores her backstory and her struggles to learn about Yamada Tatsumori's history that caused him to invoke Ryusei's Deal with the Devil in the first place.
SplitxEnd tells of Yayoi Tokuda investigating Gentaro's death after seeing him attend his own funeral. Along the way, she meets up with Haruto Souma and must balance her feelings for him and the danger that is looming as she delves deeper and deeper into Gentaro Kisaragi's past. Crosses over with Month of Sundays later on.
Imagine Dragons takes place in the same events of SplitXEnd with Haruto Souma's observations about how he somehow got involved in both the mystery of Gentaro Kisaragi and developing feelings for Yayoi.
Part 1.25: Unfamiliar (Stories related to Part 1 but not really tied to them)
Forbidden Fruit takes place in Zaname City, revolving around the Drupers hangout. Not much else is known, despite it stating in the summary that takes place in the Horseshoes universe.
Cherry Picking Takes place at the end of Forbidden Fruit and spans throughout the next 72 hours dealing with Forbidden Fruit's aftermath.
Confessons on a Dance Floor is a first person perspective of Cherry Picking starting at chapter 7, dealing with Luna Iwashimizu's backstory and her investigations in Zaname City.
Due to the stories involved, it is vitally important that you read through one work until the end due to the stories being intertwined with one another. Also expect lots of spoilers.Oh, and it's also worth mentioning that the author is a fan of Masterdramon's My Dark King, which she notes was what inspired her writing style for the story.A character sheet is in the works. All tropes regarding characters will be moved there.
This Series Provides Examples Of:
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Tropes In All Stories
Action Girl: Yuki Jojima, Miu Kazashiro, Tomoko Nozama...basically all female characters in the show can kick ass.
Dark Action Girl: Sarina Sonada, Yukina Takamura and Misa Torizaki once they appear.
Adult Fear: Many of the stories deal with threatening situations.
In Horseshoes and Hand Grenades, your grandson has died and his friends have no memories of his resurrection. Your friend gets brainwashed and you can't stop it. You killed off and resurrected as brainwashed soldiers, and you have no choice but to kill off your own friend.
In Month of Sundays: Takashi saw his son, Teruhiko, kidnapped in front of your eyes and becomes freaked out as he has no idea what is going on, while Teruhiko is being given Cosmic Energy injections. Damballa has been trying to search for his grandson that he separated from and is willing to do anything to bring him back.
SplitxEnd: JK was traumatized by seeing his little sister killed off right in front of his eyes by Taking the Bullet. Yayoi was paralyzed to do anything to save Haruto and blames herself for it.
Anyone Can Die: Shun Daimonji, Yukina Takamura, Misa Torizaki, Shotaro Hidari.... Basically no one is safe from this trope.
Ascended Extra: Many secondary characters in the Fourze universe are playing bigger parts whether they're in Horseshoes, or in any of the other stories.
Author Appeal: The author likes music as some of the stories are titled after a band (Imagine Dragons and The Birthday Massacre), song (Summertime Sadness, Another Me), or album (Confessions on a Dance Floor) and titles there will be Titled After the Song. She also likes Rosencrantz and Guildenstern Are Dead given how it's been referenced a few times, and the boys who were with Mei back in episode 31 of Fourze are named Ros and Guil.
Backstory: Every Kamen Rider Fourze character has a backstory, and most characters not related to Fourze also have new backstories to relate to this dark world.
Dual Wielding: Gentaro gains two blades with the Circinus Spell. Shun gets two patas (a pair of gauntlet with sword blades) when he makes his contract with Vasuki. Rumi upgrades from a vaulting pole to a pair of batons later on.
Epigraph: Each chapter of every story starts with a quote in relation to the chapter's title.
The Kamen Rider Club Girls has Yuki's Hayabusa plushie Power Fist and Miu in the Power Dizer (Fighter), Erin's ability as the Aquarius Zodiarts (Mage) and Tomoko's Whip It Good snake skin and barrier powers (Thief).
In A Month of Sundays, The Glee Club has Abe being the sword wielder (Thief), Ibuki the Ninja with a large arsenal that fights at a distance (Mage) and Taira with his axe that does the most damage to opponents (Fighter). The girls have Rumi charging in with the vaulting pole (Fighter), Mari and her healing spells (Mage) and Jun with her athleticism and acrobatics (Thief)
For the villains' side, Gentaro is usually the brawler seeing as he's a Kamen Rider (Fighter), Kengo fights at a distance with fire (Mage) and Jiro fights up close with knives (Thief)
For Want of a Nail: The series' plot comes from Kengo not reviving Gentaro with the Cosmic Switch, but rather has Ophiuchus do it instead.
Moreover, everything comes to fruition due to Ryusei's Deal with the Devil. The prequel "Who Decides?" states that he was trying to follow the fortune-reading laid out for him.
Idiosyncratic Episode Naming: Most stories have the chapter titles be different things, and the names of the chapters vary also. So far, this includes:
Wheel of Fortune: The chapter titles are called "Wheel", and every chapter is named after a Tarot Card and whether it's right-side up or upside down.
The Birthday Massacre: The chapter titles are called "Melody", and every chapter is named after a song from The Birthday Massacre
Horseshoes and Hand Grenades, A Month of Sundays, Quick to the Trigger have titles based on the last word or syllable based off the previous chapter.
SplitxEnd has its chapter titles be named "Split". The letters of each four chapters from up to down (except the first four which is vice versa), spells a word.
Cherry Picking: Has titles following the pattern Black [X]
Forbidden Fruit: Each chapter title is called "Bite", and every chapter is named after a food-related idiom.
Summertime Sadness: Each chapter title is called "Summer".
Loads and Loads of Characters: Fourze's boasted a huge amount of named characters in the Kamen Rider universe, so it's no exception that many of them will come up sooner or later. Plus we also have two Showa Riders, five Imagins and the DenLiner crew making appearances. There is already 50 characters as of the first Intermission.
And in the other fics below, more and more characters are named and introduced.
Running Gag: Throughout many of the stories, people comment on how Gentaro's death via one-inch punch looks like something that came from a Bruce Lee movie.
Theme Naming: The majority of the stories have idioms based titles. These include:
Horseshoes and Hand-grenades means "Coming close yet not succeeding is not enough"
A Month of Sundays means "Not likely to happen"
Cherry Picking is about "Choosing specific people/things to complete a task."
Quick to the Trigger talks about "People being quick to respond to anything"
Give the Green Light means "Giving permission for someone to do something."
Blue-Eyed Boy means "The favorite of someone in power".
Another Me is named after one of the entrance themes of Jeff Hardy.
Summertime Sadness is named after the Lana Del Rey song, and Erin's chapter is named after the Enya song "Orinoco Flow"
A Tragedy of Impulsiveness: Where this is headed. The series can basically be summed up to: "Thanks to Ryusei killing off The Hero, he gets resurrected and hell breaks loose."
Western Zodiac: Notable in that Gentaro's birthday falls on November 30th. This usually means he's a Scorpio, but he is considered an Ophiuchus in the story. One of the biggest mysteries in the series is discovering why this is true.
World of Badass: Every Kamen Rider Fourze character have been given significant levels of badass to survive in this world ranging from the Lovable CowardKnowledge Broker fighting with guns (filled with rubber bullets, but still!), the candy eating cheerleader fighting a Serpent with a mannequin arm, and the Butt Monkey teacher willingly beating the teacher he had a crush on.
Horseshoes and Hand Grenades
Adult Fear: Your child died without you knowing how, then was resurrected by an ancient Serpent to enact revenge. There are other moments shown throughout, though.
Amazon Brigade: Pun aside, this is the Kamen Rider Club Girls in a nutshell.
Animal Motif: Ophiuchus, and by extension Gentaro, is represented by snakes.
Arc Words: "Death shouldn't be the answer." or variations of it. "Who are you? No, what are you?" is also common place..
As You Know: XV The Damned Don't Dance gives the audience the entire backstory of Fourze with OSTO and the Cosmic Energy involved.
Axe Crazy: Ryusei, Jiro, and Kengo as of the Kyoto Arc.
Aztec Mythology: Tomoko's group is doing a play between Quetzalcoatl and Mictlantecuhtli in the Kyoto Arc in an attempt to lure Ryusei out in the open. There's also the "Serpent of Obsidian Knives", a.k.a Jiro Inseki, which is a symbol of sacrifice.
In the twelfth chapter, JK is about to be killed by Ryusei. Cue Nadeshiko coming in out of nowhere with a kick to the stomach.
The next chapter, JK is once again going to be killed by the same person above. Cue Shun coming in to save his ass...as a Serpent-bearer.
Black and White Morality: The Kamen Rider Club and their friends, the Kamen Riders and their friends are the good guys compared to Gentaro and Ophiuchus and the Zodiarts.
A Boy and His X: Soushi Motoyama, Shun Daimonji, Ban Chosuke, JK and Norio Eguchi with their Imagin partners for the good guys. Then we have Gentaro and his Serpent Master on the villain's side.
Brainwashed and Crazy: Aside from Gentaro we also have: Ryusei, Kengo, Jiro along with the other Serpent Vessels
Breather Episode: Zigzagged. The Intermission chapters are breaks from the heavy fighting in the main story...but they also reveal scenes that are being influenced by said fighting and become other stories that happen along the way.
Central Theme: Victories and shortcomings: most battles between good and evil have one side unable to claim victory and the title reflects on the motion of "It's win or lose. That's all."
Creepy Doll: Shotaro becomes one as per payment for being a Serpent-bearer to Damballa in the second Intermission and Damballa does it again to Haruto in the third.
Deconstruction: Ryusei's I Did What I Had to Do mentality to kill Gentaro in this fic shows that it was not for the best, and Why Decide? explains that there were alternate ways to save Jiro. It also deconstructs some of the characters and their decisions (for example explaining Misa Torizaki's backstory and her ultimate decision to force Norio to become Cygnus again and Ophiuchus breaking Gentaro on his ideals of friendship)
Demonic Possession: The Imagins appear once more to help out with the plot and bond to different characters to access Den-O's different forms. They are:
Momotaros/Sword Form -> Soushi Motoyama
Urataros/Rod Form -> Shun Daimonji
Kintaros/Axe Form -> Ban Chosuke
Ryutaros/Gun Form -> JK
Sieg/Wing Form -> Norio Eguchi
All Together/Super Climax Form -> Haruka Utsugi
Downer Beginning: The first chapter (in this order), has Gentaro resurrected and brainwashing Ohsugi and Kengo to make it believe he wasn't resurrected, then destroying the Aries Zodiarts by summoning Ophiuchus to summon him whole, brainwashing his friends to forget everything that they've seen, and finally giving Ryusei mercy all while mocking him that that they're "friends". Harsh.
Early-Bird Cameo: Yuta Suguira (Taurus Zodiarts) gets name-dropped during the first Intermission.
Evil Counterpart: The Meteor Impact Switch for Meteor Storm and Void States for Cosmic States.
I Let Gwen Stacy Die/It's All My Fault: The Kamen Rider Club blame themselves for Gentaro's death since none of them realized that Ryusei was Kamen Rider Meteor and the fact that they stood there to let Gentaro die.
Karmic Death: Yukina dies by the very same man that she's been so obsessive over in XIII-2 "Of Sins and Shadows". Yamada is sent into a coma by the same man he told Ryusei to kill.
Love Makes You Stupid: Ohsugi has this epiphany about him falling in love with Sonada, realizing that he was an utter fool. Yukina realizes this too late and she dies at the end of XIII-2 "Of Sins and Shadows".
Stellar Name: Gentaro has access to abilities that are named after constellations. These include:
Serpens: Summons a snake that acts like a Mind-Control Device to whomever it decides to clamp around a person's neck.
Pictor: Lets him disguise his appearance. "Tears to Shed" reveals that with enough concentration, Gentaro can transform into a snake.
Serpens Caput/Cauda: Summons two halves of a snake used for resurrection. Caput summons that lower half that crawls into the deceased person's throat, and Cauda summons the head that resurrects the body after Gentaro says the magic words.
Horologium: Makes the sound of a pendulum clock ring in a person's head.
Pyxis: Similar to Pyxis Zodiarts' ability in the show.
Scutum: Creates a shield to protect him from attacks.
Theme Naming: Gentaro's worshipers are named after snake deities or related to them. We so far have Apep (Kengo),Serpent of the Obsidian Knives (Jiro Inseki), Neroda (Yuri Kuramochi), Kukulkan (Misa Torizaki), Ecydsis (Kouhei Hayami) and Leviathan (Philip) As of #13, we have another serpent based deity by the name of Vasuki, who is currently fused with an Urataros-possessed Shun. In the first intermission, we also have the Rainbow Serpent whose current avatar is Mari Yamamoto while the second has King Damballa possessing Shotaro.
Foregone Conclusion: Ryusei is going to kill Gentaro to save Jiro and cause the events of the other stories to occur. The extra chapter, Why Decide? states that he could've chosen a different path to save Jiro, but doesn't state the after effects it would cause.
Foreshadowing: It's commonly noted that there are 13 Astronomical signs as opposed to twelve. Plus, Ryusei doesn't have recollection on a family or birthdays foreshadowing that he's not actually human.
Meaningful Name: Madame Pollux is named after Pollux from the myth of Castor and Pollux. Coincidentally, Pollux is also the brightest star in Gemini's constellation, relating to below.
Tarot Motifs: The cards drawn by Ryusei are all of the Minor Arcana. His first card is the Inverted Six of Cups, the second is the upright Four of Coins and the last is the upright Nine of Rods.
Western Zodiac: Ryusei is a Gemini in this story. He states that Mei is an Aquarius in Why Decide?
Wham Episode: When Ryusei leaves the tent, it's revealed that Madame Pollux is his best friend Mei Shirawkawa whose shift was supposed to end prior to his fortune reading. She was presumably possessed by a serpent.
Alliterative Family: As revealed in this story, Yuki's parents are named Yusuke and Yomi Jojima.
Foreshadowing: In the second chapter, Mei states to Ros and Guil, "I don't even know why I'm friends with you." A few chapters later, it's revealed that they were hired by a rental company to be her friends, thus she doesn't know the true reason the three were 'friends' in the first place.
Tarot Motifs: Each chapter is named after a different tarot card along with their position, and Mei draws fortunes for different people involved. For example, Ryusei's future card was the upward Nine of Rods, while Gentaro had the inverted The Emperor. This represents Ryusei trying to defeat the obstacle in his way (Gentaro) and Gentaro following his heart to make Ryusei happy, rather than do something for his own benefit, causing everything that happens in the story.
Wham Episode: Chapter 12 reveals why Mei's parents were being such jerks—because apparently, Mei has some sort of psychokinesis which only works when she's under pressure and was needed for Mei's parents to inherit the family fortune. She asked Renenutet to erase herself from her grandfather's memory, no longer wanting to do anything with her family, and has decided to live alone. Oh, and she's also cousins to Yayoi Tokuda.
Wham Line: Chapter 10: in-universe for Mei, considering that she hasn't caught up to the events in Horseshoes.
Renenutet: That boy? I think you know his name, Serpent-bearer. The boy is simply known as Gentaro Kisaragi.
You Can't Fight Fate: Mei's biggest struggle is trying to follow through what her Tarot spreads are foreshadowing and whether she should alter it or such. She's later obtained the ability to manipulate the tarot spread to whatever she desires.
"For a moment, I thought I could see the look of terror in my eyes in one of the blades."
Call Forward: Yayoi's pal on the forums goes by the name of KRSwan. In the 2nd Intermission of Horseshoes we meet up with Kit and Maya looking up a website regarding the War of the Stars.
Childhood Friends: Yayoi and JK. Their friendship is so close that Yayoi is bunking with him while her parents are off on important business.
Cry into Chest: Yayoi references that she did this once JK forgave her for her Coma Zodiarts business.
Early-Bird Cameo: Like Tears to Shed, Yayoi meets up with Haruto, but he's being accompanied by Koyomi this time.
Easily Forgiven: JK forgave Yayoi for her stint as Coma Zodiarts and had no hard feelings.
Exact Words: In the first episode of Fourze, Gentaro tells Yuki that he made a thousand friends in the span of ten years. As Yayoi finds out from reading his journal, he never stated if most of them were alive.
Foreshadowing: Koyomi's warnings for Yayoi were probably for the Foundation X members kidnapping former Switchers in "A Month of Sundays". In Split-6, she was about to be kidnapped by Foundation X scientists when Haruto saved her just in time.
Fortune Teller: Koyomi's outfit for Yayoi, although it resembles more of a gypsy than fortune teller.
Four Is Death: Yayoi states its significance when she fights against Mei. Haruto is then killed paragraphs later with the fourth sword of the Four of Swords tarot card.
Hair Contrast Duo: Dark-haired Yayoi to both light brown Haruto and JK. Yayoi's the researcher who openly admits that she can't fight and be of any use to the Kamen Rider Club while both Haruto and JK are Kamen Riders (Wizard and Gun Den-O) but are also Stepford Smilers holding some very bad Survivor Guilt baggage behind their cheery facades.
Hero of Another Story: Yayoi's adventures revolve uncovering the truth behind Gentaro Kisaragi and her relationship with JK and Haruto.
Holding Hands: Haruto and Yayoi from time to time. Yayoi denies that this is a start of a relationship though.
Noodle Incident: "That incident" which is something that no one (Yayoi, JK and JK's father) talks about. It presumably relates to why JK's father ultimately gave up his rock-star career and as to why JK became such a Knowledge Broker in the first place. It's based on the death of JK's little sister and JK became a Knowledge Broker because his father didn't know of the caretaker's sanity issues so that a tragedy like that could never happen again.
Reality Ensues: Yayoi teleports herself to the Narumi Detective Agency to fight Damballa all with some new swords. Unfortunately, Damballa is a very old Serpent and she's a college student who just got the swords, thus Damballa drags her down to the ground with the Greensleeves spell and makes her attack useless.
Reflective Eyes: Commented by Yayoi when she's seeing eye to eye with Renenutet.
Rescue Romance: Haruto saving Yayoi in Split-6 seems to play off this. Yayoi notes that she shouldn't be mixing up Haruto saving her as an act of true love, though.
Ship Tease: Haruto and Yayoi, especially in the ninth chapter.
Theme Naming: Kisaragi means "February", and Yayoi means "March" representing how Yayoi is chasing after Gentaro's past.
Title Drop: The title comes from Yayoi's username on the forums.
Anachronic Order: Just like Tears to Shed, the chapters go back and forth with Haruto's mindset.
Hidden Depths: Haruto is shown to be a bit shy and aside from his calm persona, he also shows fear and confusion over the turn of events with Gentaro and him slowly falling in love with Yayoi.
Tears to Shed
Anachronic Order: The chapters jump back and forth a bit. If put in order, it would go like this.
Book Ends: Tears-1 has Gentaro leave his parents' grave after drying his tears. Tears-10 has him leaving his parents' spirits, but he no longer has any tears.
Early-Bird Cameo: Tears-8 has Gentaro pass by the Donut Shop Hungry food truck and accidentally mistaken for Haruto (due to him using the Pictor spell to hide his identity). Just after Gentaro leaves, Haruto himself appears.
Perspective Flip: Some of the chapters takes place in Gentaro's perspective of the story. Notably, Tears-5 reveals that he was the serpent that sent Kengo to the hospital way back in II Genesis of the original story.
Take That: When Gentaro meets up with the Donut Shop Hungry Manager, being mistaken for Haruto, the manager asks why 'Haruto' always gets the sugar donuts. Gentaro gives a snarky reply in his mind suggesting that Haruto doesn't really have that much character depth.
The Birthday Massacre
The Bad Guy Wins: Depending on how you view him, but Reverie is so far the only personality of Gentaro to not die and to actually achieve in getting Gentaro to—momentarily—see the light.
Flower Motif: Each of Gentaro's personalities holds different flowers on them. This include:
Anamnesis has a poppy tattoo, with poppies representing "death". Anamnesis also states a line from "In Flander's Fields", representing how poppies are the symbol for Remembrance Day.
Yen tosses Nadeshiko flowers (Scientific name: Dianthus Superbus) which in Greek means "divine flower."
Nonce has an iris flowers that are said to be messages. It's also a double meaning as Kisaragi means February and the iris is February's birth flower.
Reverie sprinkles violet flowers that are used to deal with sleep and dreams alongside rebirth in sleep.
Anamnesis is a name of a Greek Philosophy where one tries to obtain the knowledge of their past lives.
Yen is a word that represents yearning.
Nonce is an antiquated word for the present.
Reverie means to be lost in one's thoughts.
A Month of Sundays
Badass Crew: The Cosmic Hunting Dogs are slowly evolving into this, considering they've fought their fellow brainwashed students, temporarily immobilized Sagittarius Nova and even convince Damballa—the Serpent who caused most of the grief for the first half of the story—to do a Heel-Face Turn. Not bad.
Battle Couple: Mari Yamamoto and Toshiya Miura, once he's freed from his brainwashing, and both Akiko and Ryu Terui
Beware the Nice Ones: Jun Shigeno is sweet, ditzy, and a lover of lollipops. However, she will not hesitate to punch a Serpent across the face and call him out on his treatment of human beings.
Big Bad: Neon Ulsland and Gamou (regarding the Zodiarts situation) and Damballa (regarding the Shotaro's Serpemt-bearer situation)
Big Word Shout: "GRANDPA?!" regarding Damballa being Quetzie's grandfather.
Flashback: Used to explain what happened in-between moments of the story. For example, Chapter 6.5 explains the fight in the DenLiner when the previous chapter ended with Mari and Jun escaping said train.
Hero of Another Story: Takes place during the second half of the Kyoto Arc in "Horseshoes and Hand-grenades" starting around its second Intermission.
Hope Springs Eternal: The name of the seventh and a half chapter. Fitting as the previous chapter showed Haruto, usually the one bringing hope to others, becoming a Creepy Doll due to Damballa resurrecting him.
Ironic Name: The title refers to an idiom that means "a significantly long time". The story is said to take place within a 48-hour time frame.
Taira: A ninja helping a samurai. (Beat) Don't tell my parents about this.
Masquerade Ball: Chiyoko hosts one in the Cous Coussier, where Yumeria arrives to dress everyone in different types of costumes of her own choosing.
On Three: Mari states this in Sundays-5.5 when she and Jun have to jump out of the DenLiner and into a portal to land in the Narumi Detective Agency.
Ryokan (inn): The group rests in one, courtesy of Satake-sensei's mother.
Shout-Out: Many of the references come from the outfits for the masquerade ball. The full list can be found in the author's profile.
Show Within a Show: Yumeria makes mention of a kid's show called "Gypsy Dragon" when she encounters Yayoi and Haruto.
Tempting Fate: The Amanogawa Glee Club makes a comment that Shotaro doesn't look like he came from Village of the Damned as a way to cheer themselves up. Come next chapter and they're right—it's Damballa who has that appearance.
Thriller on the Express: Chapters 5, 5.5 and 6.5 deal with Naomi, Hana, Satonaka and Satake-sensei fighting off against Sonada and Kijima in DenLiner.
Two Lines, No Waiting: The first part of the story has the Cosmic Hunting Dogs involved with Damballa and learning about Ophiuchus and Teruhiko Satake trying to escape Foundation X and accidentally getting the Kamen Rider OOO cast involved with the chaos.
The Unreveal: Rumi and Ibuki are spying on Ophiuchus and Philip about the War of the Stars. Just as it reveals the enemy of the serpents, Philip shuts the book.
Split x End has the possibility that the war was based off of Ophiuchus's invitation to become the 13th Symbol and the other Horoscope constellations' hatred for him.
Weapon of Choice: Abe's is a tanto blade, Ibuki has a kursarigama and Taira has an axe. Rumi has a vaulting pole but later switches it for two batons. Jun picks up a baseball bat for her own.
Wham Line: Dropped by the Rainbow Serpent in Sundays-6.
Rainbow Serpent:My healing spells don't work on Serpent-bearers. Your spell didn't free him (Shotaro) from Damballa's influence.
When Yayoi meets up with them in Sundays-8:
Yayoi: "Gentaro Kisaragi is a descendant of Asclepius. No, he's more than that. To be accurate, Gentaro Kisaragi is a special descendant of Asclepius known as the White Crow of the Veil."
Jun showing Quetzie to Damballa.
What Measure Is a Non-Human?: The whole struggle in the Carnival of the Human Spirit revolves around this. Haruto, Eiji and Shotaro are transformed into dolls and killed off in pretty gruesome ways. Jun calls Akiko out of this after she places a cap on Shotaro stating that even though the three were transformed into dolls, they're still the same people they knew and love and asks how they're gonna react if they ever returned human.
And Now For Something Completely Different: Forbidden Fruit takes place in Zaname City and (supposedly) has no other relationship to any of the other stories. It has a lot of scenes of guys having sex though....
Epigraph: As usual. The prologue quotes Genesis 3:1-5.
Hurricane of Puns: Some of the parfaits sold at Drupers include: the Berry Sweet Love, the Grape-fruit Parfait, the Nuts and Melon-Bolts and the Berry Bananza.
Love Potion: The Berry Sweet Love parfait is said to be this, binding the couple who eat it into eternal happiness. Other parfaits also seem to do this.
"Hi, this is Yumeria! If you hear this, I'm off to deal with costumes and other things cosplay! So leave a message after the meow! Meow~"
Missed Him by That Much: When Mai goes to find Kota at his apartment, she finds that someone is moving his stuff somewhere else and that his sister has no memory of even having Kota as a brother. The thing is though, if she spent a bit more time looking into the passenger seat of the truck, she would've see Kota inside it.
Please Put Some Clothes On: Luna asks both Kota and Hideyasu to put underwear on in the changing room as she just explained in Chapter 6 that she had to barricade Kota at the beginning because Kota would just use that time to make out with Hideyasu as he got dressed. Take note, Hideyasu is now a Wholesome Crossdresser and Luna's attitude about it is more in the vein of, "Oh come on..." instead of disgust or embarrassment.
Soundtrack Dissonance: In-universe. When Luna is pointing a gun at Mai to get her to leave her costume shop, the radio is blaring "Switch On!". The narration lampshades that it was probably written to create dissonance to the serious situation.
Stealth Pun: Given the whole sexual themes going on, there's going to be a lot of cherries popped.
Verb This!: Souji's reaction to Hideyasu (dressed as a girl but he has no idea).
Hideyasu: Oh, so you're saying you're not cool enough to do something...risky?
Souji: Risky this, girl. (plays a kiss on Hideyasu's lips while Luna watches)
Confessions on a Dance Floor
Break Her Heart To Save Her: The scene in chapter 7 of Cherry Picking, where Luna places Mai at gunpoint, is explained as Luna feeling bad about the situation but knows that it would be better this way.
How We Got Here: The beginning of the story shows Luna seeing a father and daughter (unnamed) fighting against one another, being at arrow point by both Kamen Riders Sid and Malika, and lots of other people fighting Invase. Luna then thinks about how she got to this point.
Not-So-Innocent Whistle: When she and Souji are at their hot pot plate, the Kyoryugers are sitting behind Luna pantomiming directions for Souji. When Luna finally turns around to see them, they freeze before whistling.
Give The Green Light
Facepalm: Souji gets into this as he sees how the other Kyoryugers react in excitement on Midnight (Luna) officially decides to be his girlfriend.
How We Got Here: Souji sums up the situation in the first scene: he's with his girlfriend and it's seven-to-two between them and the Zaname Kamen Riders.
Not What It Looks Like: Lampshaded by Souji when Rin Katsuyama accidentally rushes in when Souji is holding Amy's hands all while dressed as Jack Atlas. He was trying to make sure he wasn't tripping on the platform boots he wore to simulate Jack's height.
Shout-Out: Midnight (Luna) sends a photo to Souji dressed up as Carly Nagisa, and the Kyoryugers prepare a cosplay for Souji to wear one based off Jack Atlas. In Cherry Picking, Souji notes that the girl with Luna (Yumeria) is dressed as Misty Lola. Word of God puts it that this was in dedication to MasterDramon and his fanfic, "My Dark King".