These are my ocs that are in the story! Here are some facts/headcanons about them and some of my own addition to the show's lore, along with some drawings at the end. (Note that I'm still practicing my digital art skills and have no art style whatsoever)
Kenna Adeen (my oc/reader):
----> Ms. Adeen, her dance teacher, is actually her aunt on her dad's side
---------> She leaves the dance studio to Kenna in the future after retirement
----> Her dad is French while her mom is French-American
---------> Dad went to the same high school as Luka's parents
---------> He met Kenna's mom when he went to study abroad in the U.S
---------> They lived in Miami, Florida for the first 8 years of Kenna's lives but would often visit France over the holidays
--------------> Kenna and Luka met when they were babies/toddlers & it surprised everyone that Kenna remembers their first encounters while Luka completely forgot
----> Kenna's grandmother moved back to France when her daughter (Kenna's mom) got married
---------> Reason for this is because she wanted to retire back in Paris
---------> This is why she continued to stay in Paris while Kenna and her family moved back to America
----> Her family has a collection of kwagatamas/jewels given to them by their ancestors
----> Kwan gives her a kwagatama on her one-year anniversary of being Phoenix
---------> It was a little red jewel that she turned into an earring
----> Her and Luka's matching rings were actually given by Master Fu
---------> They're actually soulmate rings but Fu knew that Luka still needed time to figure out his feelings so he told him that they're friendship rings
----> When she moved to her hometown, she found out about the miraculous holders in America and began working alongside them as well
---------> I think that the miraculous holders in the US are scattered in different states like there's some in New York, California, etc. and they communicate with each other through their miraculous
---------> Sort of like DC's Justice League and Marvel's Avengers
----> Sexuality: Pan/Demi
---------> My headcanon is the Luka is bi
---------> Gay for Marinette and Kagami
----> Starting Age: 16
----> Final Age: 32
Kwan:
----> Kwan isn't in the Chinese zodiac, but in Chinese folklore, phoenixes symbolized high virtue, grace, and femininity
---------> Which is why she goes by she/her pronouns even though kwamis are genderless
----> She's the first kwami because she represents the element fire
---------> Kwamis are created "whenever a new abstract idea or emotion comes to existence such as creation, love..."
---------> Thus, her miraculous is made out of the magma and ashes from the first volcano but she was birthed from the explosion of the Big Bang, flying out from the center of the sun
---------> Tikki is said to be the first kwami to appear as she represents the creation of the universe
--------------> So to be true to the show's lore, Kwan and Tikki were both created at the same time, but (like twins) Kwan beats Tikki by a second
-------------------> The other kwamis would sometimes refer to them as actual sisters whenever they fight, which happens a lot
---------------> And I'm guessing that there could be more miraculous and kwamis, so if Kwan is returned to the Guardians, she would belong in a box full of elemental miraculous
-------------------> Elemental kwamis look more like the animals they represent than how normal kwamis look like (ya know, how Kwan has wings instead of arms)
----> The Guardians and Kwan herself don't know why it's Kenna's/reader's ancestors that can tame her the best
---------> They think it could be related to the story in The Phoenix chapter
----> Like Plagg and Duusu, Kwan enjoys some chaos
---------> She and Plagg actually destroyed the dinosaurs together
----> Kwan's name doesn't follow the double letter rule for kwamis
----> She hates water and her miraculous isn't the best of use during said situations
----> Gets along great with Longg, Plagg, Duusu, Sass, Orikko, and Roaar
---------> Besties with Longg as dragons and phoenixes are a scared combination in Chinese culture (dragons would represent the emperor, and phoenixes would represent the empress)
--------------------> Kwan's previous master's first love was a holder of the dragon miraculous until her death
----> I first had her color theme to be similar to Orikko in the beginning, but then I redesigned her to look more like the Chinese drawings (blue, green, orange, yellow) with a bit of red in there
---------> Her legs are black, her tail feathers are blue, orange, and green, she has a yellow head feather with a red jewel on her forehead.
Ruben Bastin:
----> His best friend that was mentioned in Satisfied is Manu
----> He's always texting Manu or playing a game on his phone
----> Met Kenna/reader at the dance studio
----> Tall boi
----> Whipped
----> Little Spoon
----> Dad of the group
----> Becomes one of Kenna's business partners in her dance studio in the future
----> Propose to Manu after a year of living together
---------> They plan to adopt more children
----> Sexuality: Bi, but more into men
----> Starting Age: 17
----> Final Age: 33
Emmanuel "Manu" Lucas:
----> Mom is Portuguese and his dad is French
----> Has been friends with Ruben since middle school
----> Met the rest of the group through Ruben
----> Really chill
----> Big Spoon
----> Mom of the group (but Grace also shares that role)
----> Likes makeup and dying his and Ruben's hair
----> Steals Ruben's sweaters all the time that he no longer questions when one of them goes missing
----> Actually dressed Ruben for his fake date in Satisfied
----> Got Ruben into anime, especially the Chinese anime Mo Dao Zu Shi
----> Owns two bunnies (if you get why, I love you)
----> Works in cosmetics in the future
----> Sexuality: Gay
----> Starting Age: 17
----> Final Age: 33
Grace and Lucien Allard:
----> Half-siblings
----> Twins (Grace is older by 2 minutes)
----> Same mother, different father
---------> This is called heteropaternal superfecundation
---------> Basically, same egg, different sperm
---------> Rare in humans, but common in cats, dogs, etc..
---------> I don't why I made their births so complicated but I did
----> They live with their mom during the weekdays and spend time at their respective dads' place during the weekends
----> They actually have other half-siblings on their dads' sides
---------> Lucien has a younger brother
---------> Grace has two sisters and a baby brother
----> Mom is a successful actress turned businesswoman
----> They resemble their mom more than their dads
----> Grace met Kenna through dance class in middle school while Luka met Lucien in his art class
---------> Luka and Kenna were shocked when they found out that they were siblings; Calixte already knew since he's been friends with them since elementary
----> Grace becomes a dance teacher & Kenna's business partner at the studio
----> Lucien becomes an artist and works with Jalil (Alix's brother)
----> Sexualities:
---------> Lucien is bi
---------> Grace is pan
----> Starting Ages: 16
----> Final Ages: 32
Calixte Garcia:
----> Travels a lot
----> His mom works in movie production and has a lot of connections
---------> Doesn't work in the same studio from the show
----> His dad works in the toy company that manufactures the miraculous hero dolls
----> Met Luka and Kenna in their French class
----> Does most of the production for Kitty Section's mvs
---------> Luka wishes to repay him, but Cal says it's nothing
----> Blue Incendier from Inferno is actually his cousin
----> His dad is from a Spanish background and his mom is from Rome
---------> His name is actually the French version of the Roman name Callistus
----> Follows in his mom's footsteps in the future
----> I actually first wrote him and Lucien to be dating
---------> Are they dating now? Maybe. Idk. Cal's personality also goes well with Philip but whenever I draw Lucien with Cal, they have this smitten look. You decide.
----> Sexuality: Gay
----> Staring Age: 16
----> Final Age: 32
Cecil Graham:
----> Trans fem
----> Owen's next-door neighbor and long time friend
----> Skater girl
----> Held a long-distance relationship with Grace for five years before moving to Paris to not only follow her dream career as a journalist stationed in France but be with Grace
---------> They dated for five years but known each other for eight
---------> Broke up once but got back together a year later
----> Keeps in touch with her friends still
---------> Philip, Simeon, and Raven visit Paris when they can
----> Sexuality: Pan
----> Starting Age: 16
----> Final age: 32
Owen Massey:
----> Photographer
----> Dresses like an e-boy (I just like the fashion okay)
----> Actually a soft boi
----> Movie fanatic
---------> Talks a lot with Cal about movies
----> The company he works for in the future is actually Kagami's family's company
---------> He didn't remember her from that one time they met but she did
---------> Was completely embarrassed about it
---------> She told him it was fine and they became close friends
----> Sexuality: Straight
---------> He's an ally and honestly doesn't care whether his girlfriend is bi/pan/straight/etc. or not
----> Starting Age: 16
----> Final Age: 32
Philip, Simeon, and Raven
----> The three have been friends with Owen and Cecil since middle school
----> The entire group are art kids as well
---------> Owen being the photographer
---------> Cecil being a writer and painter
---------> Raven and Simeon are theater kids
---------> Philip is a band kid and a pianist in a band with his other group of friends
----> Raven and Simeon are dating
----> Philip is lonely and gags at them
----> Sexualities:
---------> Philip is a disaster gay
---------> Simeon is straight
---------> Raven is straight
----> Starting Ages
---------> Philip: 17
---------> Simeon: 16
---------> Raven: 16
----> Final ages:
---------> Philip: 33
---------> Simeon: 32
---------> Raven: 32
Here are also my versions of the children and some facts about them.
Beka Couffaine
----> Firstborn of his siblings
----> Takes after Luka
----> Can play the guitar and drums
----> Likes dancing with his mother and dying the tips of his hair red
----> Has a crush on Emma
----> Favorite miraculous holders are Ladybug and Phoenix (it's a tie)
---------> Viperon is his second
----> Kwan likes to watch over him
----> Tikki also likes spending time with him when they're all hanging out
----> Age: 7 (turns 8 in the final extra story)
Rika Couffaine
----> Takes after her mother
----> Is learning how to play the piano
----> Wants to dye her hair too but her parents tell her not yet
---------> Is jealous of her brother for this
----> Meditates with Sass
----> Favorite miraculous holder is Ryuko
---------> She thinks Ryuko is so cool and gives a prince charming vibe
----> Has been taking ballet for a year now
----> Age: 5
Odette and Julien Couffaine
----> Twins!
---------> Julien takes after his mom while Odette looks more like her dad
----> Odette is named after the main character in Swan Lake
----> Julien is named after Juleka
----> They are a dancing and piano duet group in the future
----> Get along with Amber, Zoe, Hugo, and Louis
----> Love playing with Kwan and Sass
----> They love hanging out with their aunties Juleka and Rose
---------> All the Couffaine children refer to them as aunties to differentiate them from their other "aunts" (Alya, Grace, Cecil, etc.)
----> Favorite miraculous holders:
---------> Odette likes the tiger miraculous holder (I'm following the theory that it's going to be Juleka & waiting for when she gets the miraculous) and Viperon
---------> Julien is a mama's boi and loves Phoenix but he also likes Bunnyx
----> Ages: 4
Emma Agreste
----> Is more like Adrien but looks like Marinette
---------> She ain't oblivious tho, she got brains
----> Likes to tease Beka
----> Plagg is her best friend
----> Tikki is her voice of reason
----> Watches anime with her dad
---------> They're currently watching BNHA
----> Future model
----> I think it's a given that Chat Noir is her favorite
----> Age: 7
Hugo Agreste
----> Looks like a baby Adrien
---------> Inherited his father's "just a friend" phrase
---------> Marinette and the kwamis find it funny while Adrien is just dying from cringe and regret
----> Has a sweet tooth
----> Likes watching his mom design clothes
----> Has Ladybug themed PJs
----> Tikki hangs out with him a lot
----> Plagg pretends that he is the master and Hugo just goes with it
---------> Tikki rolls her eyes every time he orders the pre-schooler to get him camembert
----> Ladybug is his role model
----> Age: 4
Louis Agreste
----> Baby boi
----> Another baby version of Adrien
---------> People think that he and Hugo are twins & they refer to them as such
---------> Only difference is that Hugo has blue eyes while Louis has green
---------> They even share the same birthday
---------> Marinette makes them matching clothes
----> Thinks that the kwamis are toys
----> Plagg is trying to get the boy to understand that he's the servant
---------> He appreciates that Louis is a fan of camembert tho
----> Tikki adores him
----> Likes all of the miraculous holders but Monkey King is his favorite because he's silly
----> Age: 3
Amber and Zoe Lahiffe
----> Both have glasses
----> Amber has a crush on Hugo
----> Zoe has proposed to Julien before
----> Trixx and Wayzz like playing with them
---------> They often have dance nights
----> Favorite miraculous holders:
---------> Amber likes Carapace
---------> Zoe likes Rena Rouge
---------> Both like Pegasus
----> Age: 4
Mateo Lucas-Bastin
----> Adopted when he was two
----> Ruben and Manu are in contact with Mat's birth mom & are good friends with her
---------> They visit her every other weekend
----> Fellow anime fan
----> Designated babysitter
---------> Beka and Emma claim that they don't need a babysitter
---------> Mateo and the rest of the adults disagree
--------------------> Mateo does it for money tho (he needs that anime merch man)
----> Likes hanging out with his parents' friends, especially Calixte and Lucien
---------> They teach him some pranks
----> Favorite miraculous holder: Ryuko
---------> He says that he likes Hawkmoth's miraculous because he thinks that if used for good, it could do some amazing stuff
----> Age: 9
Drawings
Phoenix (transformation from Inferno)
(I was too lazy to draw hands ↴)
(I'm currently working on this↴)
And that's it! I really love these characters so they're going to be in future Luka x readers of mine because I like to think that Luka has his own group of friends that are in his grade level.