Cosmic Freaky Friday is a crossover fanfic between Riordanverse and Fate/Grand Order written by LazyFrog
.
The story functions as a What If? scenario in which the different characters (be they gods, monsters or heroes) present in Rick Riordan's books are merged with their equivalent versions from FGO. The story is mostly focused in cracky, slice-of-life moments involving the characters, but also with the addition of drama and action involving both the changed characters and those who stayed the same.
It can be read on SpaceBattles
and FanFiction.net
.
Cosmic Freaky Friday contains examples of:
- Abusive Parents: The Greek gods have, to varying degrees, neglected their children.
- Athena is horrified when her terminal Minerva relays her memories of her Roman part and how her many children died in the futile quest to retrieve her statue.
- Adaptational Badass: Some examples are:
- The fusion event has caused several characters to acquire the abilities of their counterparts, making them more powerful in the process. So far, several gods and monsters have become more powerful than their canon PJO counterparts.
- Chiron's new training regimen has gotten several demigods into shape to the point where they can smash concrete without straining.
- Rachel Dare becomes a Demi-Servant with the power of Altera after finding the Photon Ray.
- Adaptational Heroism: Due to Demeter give Luke Castellan the love and support he needs, his father Hermes talking to him, and Zeus resurrecting Thalia Grace early, Luke does not give in to his resentment of the gods and betray them.
- Adaptational Nice Guy: Through dialogue, Demeter manages to do Hera less antagonistic towards the illegitimate children of her husband Zeus.
- The Atoner: Combinated with Alternate Personality Punishment. The Olympian Gods, those who assimilated their counterparts, feel the need to make up for "their sins" and ensure that Camp Half-Blood is better than before in response. Making it a much nicer place while doing their best to locate and safely gather other Demigod children and more.
- Awesomeness by Analysis: Despite being the youngest of the trio, Luke trusts Annabeth's analysis enough to ask her directly for weaknesses of a monster during a battle.
- Awful Wedded Life: How Hera would describe her marriage with Zeus before the merge. The new Zeus is so different from her old husband that she can barely believe they're the same person.
- Comical Overreacting: Athena, as a result of now having a teenager's personality, is much more prone to overreact to problems she would consider trivial before. Just the thought of hosting a ceremony in Camp Half-Blood is enough to have her repeatedly banging her head against a table.
- Convenient Coma: According to the author, Gabe Ugliano went to a coma after Sally and Percy moved out.
- Cool Uncle: Ares went from being an a**hole to most of the demigods to being an honorable, incredible example of a War God. The fact he looks like a Mecha certainly helps with the cool title as well.
- Crossing the Burnt Bridge:
- Zeus with Hera due to his multiple past infidelities.
- Demeter with her demigod children after realizing how negligent she really was.
- Hermes with his son Luke.
- Athena unknowingly crosses a burned bridge with Medusa, she was lucky that Nasuverse counterpart of Medusa had already overcome her hatred towards Athena and Poseidon.
- Curb-Stomp Battle: Zeus easily defeats Chronos' forces.
- Cute Bruiser: Anyone seeing the new Artemis would likely doubt she could hurt a fly. That is, until they remember she was the one who personally trained Chiron to become the monster of a teacher he is today.
- Deconstruction: Of Fusion Dance itself. Originally believed that the Gods (and other characters) from the Nasuverse swapped with their Riordanverse characters, it's eventually revealed that the former assimilated, merged, and overtook their latter variants. While this seemingly gives the former all they wanted, being the dominant personality, and able to act in the world of man, it also leaves them emotionally vulnerable and wrecked. As the merge gave them the emotions and memories of their counterparts, which even includes memories from their Lostbelt variants. Some having it worse than others. Not helped that the Riordanverse characters, while some don't mind the changes, others realize something is up where it's only some time before some like Rhea realize the versions they personally knew were wiped and assimilated.
- For Zeus, despite being as powerful as always and more, he recalls the memories his Lostbelt counterpart did to his fellow Gods and all the acts of infidelity his Riordanverse counterpart committed. Alongside guilt, and realization he must work hard to aid the children the Gods had, the Riordanverse Hera has little to no love of him, leaving him lonely as the woman he loves doesn't even look at him.
- Demeter seems alright at first, but she feels horrible for the demigods as the merge makes it so that she blames herself for it. Not helped that due to recalling the memories of her Lostbelt counterpart (and missing some context), she remembers killing Persephone and distances herself from her daughter from sheer guilt.
- Aphrodite isn't even really Aphrodite anymore. As the merge between her Nasuverse-self, her counterparts from the Lostbelt and Riodanverse has left the Goddess emotionally vulnerable with no clear identity of who she really even is - being none of them. Just a newborn personality that now needs support to continue on for the time being until she recovers.
- Athena is a special case as she's technically still her, but gained the body of Medusa due to how her Nasuverse counterpart ended up being connected with Medusa as a Saber. While Athena is in charge, her personality has altered and if not for Medusa deciding to be nice (but still fools her), she'd have suffered an identity crisis that she was the fake and Medusa was the real Athena.
- Death of Personality: Zigzagged. Depending on the case, the fusion suppresses the personality of the native version of the individuals of the Riondanverse to varying degrees.
- Divided Deity: Athena's Greek part has merged with Saber Medusa while her Roman part (Minerva) has merged with her Atlantic Lostbelt terminal.
- Doting Parent:
- Demeter not only becomes much more present to her demigod children, but she becomes basically a mother to the entirety of Camp Half-Blood.
- Artemis keeps claiming her huntresses are her daughters with pride, even if doing so may embarrass some of them.
- Doppelgänger Gets Same Sentiment: The Nasuverse Gods who assimilated their counterparts don't treat their Riodanverse siblings any differently than they would their versions and see them as family.
- Dreadful Musician: If Camp Jupiter could pay to never have to listen to Nero's singing again, they would do so in a heartbeat.
- The Empath: Demeter uses all the divine authority she can muster to tap into the emotions and memories of the demigods' situation and she is horrified to discover how she and her family have neglected their children.
- Forced Transformation: Several individuals from the Riondaverse mentally and physically transform into their Nasuverse counterparts.
- "Freaky Friday" Flip: The very premise of the story, though it becomes very clear it's more of a merging of the characters from the different franchises rather than a plain swap, and even then they happen in different proportions to different characters. Subverted when it's revealed that it's actually a Fusion Dance rather than swapping out.
- Fusion Dance: What happened to the living characters from the Riordanverse that have counterparts in the Nasuverse, though the degree at which they fused depends with each character. Some only had their bodies and personality changed, like Athena, while others received memories from their Nasuverse versions as well, like Aphrodite.
- Gender Bender: Because of how the Nasuverse works, some characters are not the same gender as they were both in history and the Riordanverse. Most notably is Nero.
- God Is Flawed: Demeter admits to Luke that the gods are not perfect and that they make mistakes.
- Go Mad from the Revelation: Iapetus is rendered catatonic when Zeus shows him his memories of the cosmic horrors that inhabit the Nasuverse.
- Heel–Face Brainwashing: Stheno and Euryale befriend Percy Jackson. As a favor, Stheno uses her mind control to make Gabe Ugliano become nice.
- Identical Stranger: As a result of the merge, Athena had her body turned into the same as Saber Medusa from FGO, causing a hilarious scenario where she thinks Medusa is her Wiser Self.
- Insecure Love Interest: There's a moment where Thalia feels jealousy and insecurity at the thought of Luke being attracted to more "girly" girls, unlike her punk aesthetic.
- It Can Think: A side effect of the change is that the monsters have become smarter, being able of organize, set up better ambushes, use troop movements, etc.
- Missed Him by That Much: During Thalia's "Tutorial Quest", she almost meets her lost brother Jason, who was in another store helping Nero with buying clothes.
- My God, What Have I Done?: Some of the Gods and other Nasuverse characters feels this way as due to the nature of the merge, they have also "inherited" the sins of their counterparts and feel guilt from it. Blaming themselves with some of the Gods now trying to make up for what "they" did and changing Camp Half-Blood as atonement.
- Normal Fish in a Tiny Pond: Several individuals from the Riondanverse who fused with their counterparts are this case.
- The Zeus of this story, who merges with his PHH and Lostbelt counterparts from the Nasuverse, manages to single-handedly defeat Chronos and his allies without a scratch. His canon counterpart from the Riondarvese couldn't do the same because he need the help of his brothers to defeat Chronos in the past.
- Oh, Crap!: Apollo wakes up and is horrified that not only has he been turned into a sheep, he's been captured by Rachel Elizabeth Dare, who has acquired the Photon Ray and been possessed by Altera.
- Overshadowed by Awesome: Thalia feels the pressure of others' expectations due to the past achievements of her more famous half-brothers like Heracles and Iskhandar.
- Parental Abandonment: An issue most demigods have to deal with as a result of Ancient Laws preventing the gods from directly involving themselves with their kids. Thankfully, the merge of multiple gods with their alternative selves from the Nasuverse allowed them to not have to worry about this problem anymore.
- Parents Know Their Children: When Zeus visits his mother Rhea, one look into his eyes lets her know he is different.
- Really 700 Years Old: Even if it meant being turned into a pig, Edward Teach still chose to live in Circe's island, as he described her as "'the perfect legal loli''.
- Redeeming Replacement: The Nasuverse characters replacing their Riordanverse selves are driven to be better. There's gods like Zeus and Ares caring for the children of Camp Half-Blood, Medusa turning Aunty Em's Gnome Emporium into a harmless cafe, Circe turning her island into a true resort, and Nero, Caligula, and presumably other members of Triumvirate Holdings taking over and caring for the children of Camp Jupiter.
- Ship Tease:
- Luke and Thalia dance, hold each other, and Thalia gets jealous when Luke talks to other girls.
- Athena starts to form a connection with an employee of Medusa named Karl.
- Spanner in the Works: Zeus and Demeter's actions in having the pantheon restructured so that lesser deities would have a say in the council, not to mention modernizing Camp Half-Blood and forcing various gods to take responsibility for their children, threw a major wrench into Cronus's plans, as Luke would currently have no interest in working with him, and the previously marginalized lesser gods and demigods who joined Cronus in canon because of the Olympian council's past rulings now have no reason to join him.
- Spared by the Adaptation: Some examples are:
- Due to adaptive distress degradation, Luke will no longer make the decisions that led him to sacrifice himself to stop Kronos.
- Gabe becoming nicer and being put in a coma would avoid his fate of being petrified like his canon counterparts.
- Freya heals Ayesha from her illness, so she is alive.
- Titanomachy, Round Two: Averted. Zeus managed to defeat Kronos' forces alone.
- Training from Hell: The new training regimen Chiron is giving in Camp Half-Blood is so intensive every demigod there is now capable of punching through concrete. Luke feels so weirded by the situation that he thought he was dreaming when he saw a scrawny Hypnos demigod accidentally shatter a marble column while yawning with his elbow.
- You Can't Fight Fate: Subverted. Zeus managed to defeat the Sisters of Fate offscreen, and everyone became immune to their manipulations of events in the process.Hestia: "Fate is no longer a shackle, Father. To immortals and mortals alike. Zeus has challenged the three crones and won."
